Overall Orange Volcanic eruption alert for Soufriere St. Vincent in Saint Vincent and the Grenadines from 09 Apr 2021 00:00 UTC to 23 Apr 2021 00:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Orange alert Volcanic eruption for Soufriere St. Vincent

in Saint Vincent and the Grenadines

Volcano Ash Advisories for air traffic

Although Volcano Ash Advisories (VAAC) are not intended for assessing humanitarian impact, the observations of the plume are relevant for understanding local impact. The actual impact (like ash fall) depends on the type of eruption and is not known.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

09 Apr 01:27 09 Apr 12:58 09 Apr 14:33 09 Apr 15:38 09 Apr 18:11 09 Apr 21:08 09 Apr 23:46 10 Apr 05:43 10 Apr 11:13 10 Apr 15:55 10 Apr 19:57 10 Apr 20:55 11 Apr 00:59 11 Apr 01:35 11 Apr 01:58 11 Apr 06:58 11 Apr 07:22 11 Apr 12:30 11 Apr 12:55 11 Apr 17:53 11 Apr 18:20 11 Apr 22:50 11 Apr 23:25 12 Apr 04:30 12 Apr 04:51 12 Apr 09:34 12 Apr 10:04 12 Apr 14:54 12 Apr 15:49 12 Apr 18:04 12 Apr 20:30 12 Apr 20:52 12 Apr 21:56 13 Apr 00:33 13 Apr 01:20 13 Apr 06:23 13 Apr 06:49 13 Apr 12:28 13 Apr 16:45 13 Apr 19:28 13 Apr 23:16 14 Apr 02:58 14 Apr 03:56 14 Apr 08:00 14 Apr 13:58 14 Apr 17:44 14 Apr 22:24 15 Apr 04:17 15 Apr 09:44 15 Apr 15:38 15 Apr 21:26 16 Apr 02:16 16 Apr 08:05 16 Apr 12:44 16 Apr 15:24 16 Apr 20:15 17 Apr 00:03 17 Apr 05:51 17 Apr 11:40 17 Apr 15:35 17 Apr 21:22 18 Apr 21:48 18 Apr 23:34 19 Apr 02:02 19 Apr 04:08 19 Apr 10:08 19 Apr 13:03 19 Apr 18:33 22 Apr 15:31 22 Apr 16:35 22 Apr 21:16 23 Apr 03:14 23 Apr 09:10 23 Apr 14:42

23/04 14:42 2021-060

23/04 09:10 2021-059

23/04 03:14 2021-058

22/04 21:16 2021-057

22/04 16:35 2021-056

22/04 15:31 2021-055

19/04 18:33 2021-054

19/04 13:03 2021-053

19/04 10:08 2021-052

19/04 04:08 2021-051

19/04 02:02 2021-050

18/04 23:34 2021-049

18/04 21:48 2021-048

17/04 21:22 2021-047

17/04 15:35 2021-046

17/04 11:40 2021-045

17/04 05:51 2021-044

17/04 00:03 2021-043

16/04 20:15 2021-042

16/04 15:24 2021-041

16/04 12:44 2021-040

16/04 08:05 2021-039

16/04 02:16 2021-038

15/04 21:26 2021-037

15/04 15:38 2021-036

15/04 09:44 2021-035

15/04 04:17 2021-034

14/04 22:24 2021-033

14/04 17:44 2021-032

14/04 13:58 2021-031

14/04 08:00 2021-030

14/04 03:56 2021-029

14/04 02:58 2021-028

13/04 23:16 2021-027

13/04 19:28 2021-026

13/04 16:45 2021-025

13/04 12:28 2021-024

13/04 06:49 2021-14

13/04 06:23 2021-023

13/04 01:20 2021-13

13/04 00:33 2021-022

12/04 21:56 2021-12

12/04 20:52 2021-021

12/04 20:30 2021-11

12/04 18:04 2021-020

12/04 15:49 2021-10

12/04 14:54 2021-019

12/04 10:04 2021-9

12/04 09:34 2021-018

12/04 04:51 2021-8

12/04 04:30 2021-017

11/04 23:25 2021-7

11/04 22:50 2021-016

11/04 18:20 2021-6

11/04 17:53 2021-015

11/04 12:55 2021-5

11/04 12:30 2021-014

11/04 07:22 2021-4

11/04 06:58 2021-013

11/04 01:58 2021-3

11/04 01:35 2021-2

11/04 00:59 2021-012

10/04 20:55 2021-1

10/04 19:57 2021-011

10/04 15:55 2021-010

10/04 11:13 2021-009

10/04 05:43 2021-008

09/04 23:46 2021-007

09/04 21:08 2021-006

09/04 18:11 2021-005

09/04 15:38 2021-004

09/04 14:33 2021-003

09/04 12:58 2021-002

09/04 01:27 2021-001

Volcanic Ash Advisory issued on 2021-04-23 at 14:42 UTC.

Key information extracted from original VAA message :

Reminent volcanic ash disp.
Reminent volcanic ash has disp. No new volcanic ash seen in satellite data under mostly clear. Tuggle.

Original Message :

Received FVXX24 at 14:45 UTC, 23/04/21 from KNES
VA ADVISORY
DTG: 20210423/1442Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/060
INFO SOURCE: GOES-16.
ERUPTION DETAILS: REMINENT VA DISP
OBS VA DTG: 23/1420Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SAT DATA
FCST VA CLD +6HR: 23/2030Z NO VA EXP
FCST VA CLD +12HR: 24/0230Z NO VA EXP
FCST VA CLD +18HR: 24/0830Z NO VA EXP
RMK: REMINENT VA HAS DISP. NO NEW VA SEEN IN SAT
DATA UNDER MSTLY CLEAR CONDS. ...TUGGLE
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2021-04-23 at 09:10 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash only.
Remnant volcanic ash to flight level 170 (5100m) centered 210 nm nw of the summit while remnant volcanic ash to flight level 250 (7500m) was 115 nm e of the summit. All remnant volcanic ash forecast to disp 6 hours. Occasional hot spot at summit. Turk.

Original Message :

Received FVXX24 at 09:12 UTC, 23/04/21 from KNES
VA ADVISORY
DTG: 20210423/0910Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/059
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: REMNANT VA ONLY
OBS VA DTG: 23/0840Z
OBS VA CLD: SFC/FL170 N1531 W06410 - N1432 W06401 - N1429 W06427 - N1529 W06438 - N1531 W06410 MOV W 5KT SFC/FL250 N1330 W05840 - N1301 W05838 - N1300 W05923 - N1328 W05932 - N1330 W05840 MOV S 5KT
FCST VA CLD +6HR: 23/1430Z NO VA EXP
FCST VA CLD +12HR: 23/2030Z NO VA EXP
FCST VA CLD +18HR: 24/0230Z NO VA EXP
RMK: REMNANT VA TO FL170 CENTERED 210 NM NW OF
THE SUMMIT WHILE REMNANT VA TO FL250 WAS 115 NM E
OF THE SUMMIT. ALL REMNANT VA FCST TO DISP WITHIN
6 HRS. OCNL HOT SPOT AT SUMMIT. ...TURK
NXT ADVISORY: WILL BE ISSUED BY 20210423/1515Z

Volcanic Ash Advisory issued on 2021-04-23 at 03:14 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash and low level em.
Volcanic ash at flight level 220 (6600m) centered 170 nm nw of summit. Volcanic ash to flight level 250 (7500m) centered 90 nm north east of summit. Low level em to flight level 70 (2100m) ext 140 nm wnw of summit. Observation volcanic ash at flight level 250 (7500m) does not agree with model forecast winds so height uncertain. Turk.

Original Message :

Received FVXX24 at 03:16 UTC, 23/04/21 from KNES
VA ADVISORY
DTG: 20210423/0314Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/058
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: REMNANT VA AND LOW LEVEL EM
OBS VA DTG: 23/0250Z
OBS VA CLD: SFC/FL070 N1404 W06307 - N1332 W06110 - N1311 W06115 - N1342 W06316 - N1404 W06307 MOV W 10KT SFC/FL220 N1523 W06341 - N1439 W06318 - N1411 W06344 - N1457 W06421 - N1523 W06341 MOV NW 10KT SFC/FL250 N1447 W05944 - N1431 W05923 - N1350 W05956 - N1406 W06014 - N1447 W05944 MOV SE 5KT
FCST VA CLD +6HR: 23/0900Z SFC/FL070 N1426 W06256 - N1329 W06109 - N1310 W06109 - N1404 W06313 - N1426 W06256 SFC/FL220 N1649 W06611 - N1636 W06523 - N1552 W06546 - N1613 W06626 - N1649 W06611 SFC/FL250 N1417 W05833 - N1404 W05808 - N1310 W05849 - N1329 W05923 - N1417 W05833
FCST VA CLD +12HR: 23/1500Z SFC/FL070 N1502 W06237 - N1323 W06104 - N1311 W06108 - N1437 W06256 - N1502 W06237 SFC/FL220 NO VA EXP SFC/FL250 NO VA EXP
FCST VA CLD +18HR: 23/2100Z SFC/FL070 N1444 W06238 - N1326 W06103 - N1310 W06107 - N1423 W06258 - N1444 W06238
RMK: VA AT FL220 CENTERED 170 NM NW OF SUMMIT. VA
TO FL250 CENTERED 90 NM NE OF SUMMIT. LOW LEVEL
EM TO FL070 EXT 140 NM WNW OF SUMMIT. OBS VA AT
FL250 DOES NOT AGREE WITH MODEL FCST WINDS SO HGT
UNCERTAIN. ...TURK
NXT ADVISORY: WILL BE ISSUED BY 20210423/0915Z

Volcanic Ash Advisory issued on 2021-04-22 at 21:16 UTC.

Key information extracted from original VAA message :

Volcanic ash clouds observation in satellite.
Light remnant volcanic ash clouds from earlier em observation in satellite extending nne of summit approximate 74 nmi at flight level 100 (3000m) and approximate 98 nmi nw of summit at flight level 280 (8400m) based on nwp model gdnc winds, mvmt and nw volcanic ash cloud thicker and moving quickly nw. Nne volcanic ash clouds disspitg. Jlevine.

Original Message :

Received FVXX24 at 21:18 UTC, 22/04/21 from KNES
VA ADVISORY
DTG: 20210422/2116Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/057
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
PILOT RPRT.
ERUPTION DETAILS: VA CLDS OBS IN STLT.
OBS VA DTG: 22/2050Z
OBS VA CLD: SFC/FL100 N1425 W06045 - N1415 W06019 - N1320 W06108 - N1319 W06113 - N1411 W06113 - N1425 W06045 MOV NE 5KT SFC/FL280 N1416 W06234 - N1358 W06114 - N1322 W06108 - N1317 W06112 - N1350 W06251 - N1416 W06234 MOV NW 5KT
FCST VA CLD +6HR: 23/0300Z SFC/FL100 N1501 W06040 - N1441 W05952 - N1352 W06041 - N1406 W06101 - N1501 W06040 SFC/FL280 N1506 W06327 - N1411 W06222 - N1350 W06237 - N1436 W06401 - N1506 W06327
FCST VA CLD +12HR: 23/0900Z NO VA EXP
FCST VA CLD +18HR: 23/1500Z NO VA EXP
RMK: LGT REMNANT VA CLDS FM EARLIER EM OBS IN
STLT EXTDG NNE OF SUMMIT APRX 74 NMI AT FL100 AND
APRX 98 NMI NW OF SUMMIT AT FL280. FL BASED ON
NWP MODEL GDNC WINDS, MVMT AND PIREPS. NW VA CLD
THICKER AND MOVG QUICKLY NW. NNE VA CLDS
DISSPITG. ...JLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210423/0315Z

Volcanic Ash Advisory issued on 2021-04-22 at 16:35 UTC.

Key information extracted from original VAA message :

New eruption around 22 1510 UTC.
New eruption around 22/1510z. Volcanic ash at flight level 120 (3600m) move north from summit with gradual turn by t+12 to the nw. Volcanic ash at flight level 250 (7500m) move wnw from summit with gradual turn to the wsw by t+6. Height and move and speed based on nwp and ash3d and satellite. Tuggle.

Original Message :

Received FVXX24 at 16:39 UTC, 22/04/21 from KNES
VA ADVISORY
DTG: 20210422/1635Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/056
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
UWI SEISMIC RESEARCH CENTRE.
ERUPTION DETAILS: NEW ERUPTION ARND 22/1510Z
OBS VA DTG: 22/1600Z
OBS VA CLD: SFC/FL120 N1338 W06103 - N1319 W06106 - N1317 W06113 - N1338 W06116 - N1338 W06103 MOV N 10KT SFC/FL250 N1340 W06120 - N1321 W06107 - N1319 W06113 - N1322 W06135 - N1340 W06120 MOV W 10KT
FCST VA CLD +6HR: 22/2200Z SFC/FL120 N1458 W06102 - N1359 W06058 - N1354 W06123 - N1457 W06136 - N1458 W06102 SFC/FL250 N1352 W06307 - N1350 W06159 - N1328 W06159 - N1302 W06305 - N1352 W06307
FCST VA CLD +12HR: 23/0400Z SFC/FL120 N1602 W06147 - N1531 W06126 - N1512 W06154 - N1544 W06225 - N1602 W06147 SFC/FL250 N1353 W06340 - N1247 W06332 - N1208 W06444 - N1320 W06507 - N1353 W06340
FCST VA CLD +18HR: 23/1000Z SFC/FL120 NO VA
EXP SFC/FL250 N1305 W06542 - N1150 W06521 - N1106
W06613 - N1159 W06710 - N1305 W06542
RMK: NEW ERUPTION ARND 22/1510Z. VA AT FL120 MOV
N FM SUMMIT WITH GRDL TURN BY T+12 TO THE NW.
VA AT FL250 MOV WNW FM SUMMIT WITH GRDL TURN
TO THE WSW BY T+6. HGT AND MOV AND SPEED BASED ON
NWP AND ASH3D AND STLT. ...TUGGLE
NXT ADVISORY: WILL BE ISSUED BY 20210422/2230Z

Volcanic Ash Advisory issued on 2021-04-22 at 15:31 UTC.

Key information extracted from original VAA message :

New eruption around 22 1510 UTC.
We have received information suggesting a possible volcanic ash eruption. We will gather further information and issue a full advisory as soon as possible.

Original Message :

Received FVXX24 at 15:36 UTC, 22/04/21 from KNES
VA ADVISORY
DTG: 20210422/1531Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/055
INFO SOURCE: UWI SEISMIC RESEARCH CENTRE.
ERUPTION DETAILS: NEW ERUPTION ARND 22/1510Z
OBS VA DTG: 22/1510Z
OBS VA CLD: SFC/FL300 N1322 W06108 - N1316 W06107 - N1316 W06114 - N1322 W06114 - N1322 W06108 MOV E 5KT
FCST VA CLD +6HR: 22/2100Z NOT AVBL
FCST VA CLD +12HR: 23/0300Z NOT AVBL
FCST VA CLD +18HR: 23/0900Z NOT AVBL
RMK: WE HAVE RECEIVED INFORMATION SUGGESTING A
POSSIBLE VA ERUPTION. WE WILL GATHER FURTHER
INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS
POSSIBLE.
NXT ADVISORY: AS SOON AS POSSIBLE

Volcanic Ash Advisory issued on 2021-04-19 at 18:33 UTC.

Key information extracted from original VAA message :

Prev volcanic ash emission disp.
Prev volcanic ash emission have disp. No new volcanic ash emission seen in satellite data under clear conditions. Tuggle.

Original Message :

Received FVXX24 at 18:35 UTC, 19/04/21 from KNES
VA ADVISORY
DTG: 20210419/1833Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/054
INFO SOURCE: GOES-16.
ERUPTION DETAILS: PREV VA EMS DISP
OBS VA DTG: 19/1810Z
OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA
FCST VA CLD +6HR: 20/0000Z NO VA EXP
FCST VA CLD +12HR: 20/0600Z NO VA EXP
FCST VA CLD +18HR: 20/1200Z NO VA EXP
RMK: PREV VA EMS HAVE DISP. NO NEW VA EMS SEEN IN
STLT DATA UNDER CLR CONDITIONS. ...TUGGLE
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2021-04-19 at 13:03 UTC.

Key information extracted from original VAA message :

New volcanic ash emission.
New and remnant volcanic ash emission observation from satellite data moving w at flight level 100 (3000m) remnant volcanic ash emission moving wsw at flight level 230 (6900m) new volcanic ash emission moving ssw at flight level 260 (7800m) remnant volcanic ash to dissipate by // end part 01 //.

Original Message :

Received FVXX24 at 13:26 UTC, 19/04/21 from KNES
VA ADVISORY
DTG: 20210419/1303Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/053
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 19/1240Z
OBS VA CLD: SFC/FL100 N1601 W06800 - N1311 W06758 - N1319 W06938 - N1554 W06936 - N1601 W06800 MOV W 20KT SFC/FL100 N1331 W06208 - N1331 W06112 - N1313 W06111 - N1312 W06208 - N1331 W06208 MOV W 25KT SFC/FL230 N1115 W06317 - N1047 W06319 - N1042 W06408 - N1113 W06405 - N1115 W06317 MOV W 20KT SFC/FL260 N1327 W06114 - N1327 W06104 - N1244 W06106 - N1244 W06127 - N1327 W06114 MOV S 20KT
20KT
FCST VA CLD +6HR: 19/1830Z SFC/FL100 N1621 W07131 - N1558 W06915 - N1313 W06910 - N1319 W07122 - N1621 W07131 SFC/FL100 N1340 W06356 - N1329 W06111 - N1311 W06105 - N1302 W06356 - N1340 W06356 SFC/FL230 N1114 W06350 - N1038 W06359 - N1015 W06524 - N1110 W06530 - N1114 W06350 SFC/FL260 N1329 W06110 - N1155 W06056 - N1229 W06227 - N1329 W06110
W06227 - N1329 W06110
FCST VA CLD +12HR: 20/0030Z SFC/FL100 N1353 W06604 - N1328 W06106 - N1311 W06106 - N1256 W06601 - N1353 W06604 SFC/FL230 NO VA EXP SFC/FL260 N1327 W06112 - N1119 W06058 - N1218 W06321 - N1327 W06112
W06321 - N1327 W06112
FCST VA CLD +18HR: 20/0630Z SFC/FL100 NO VA
EXP SFC/FL260 NO VA EXP
RMK: NEW AND REMNANT VA EMS OBS FM STLT DATA MOVG
W AT FL100. REMNANT VA EMS MOVG WSW AT FL230. NEW
VA EMS MOVG SSW AT FL260. REMNANT VA TO DSIPT BY
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-19 at 10:08 UTC.

Key information extracted from original VAA message :

No current eruption. Detached volcanic ash.
No current volcanic ash emission detected from summit on satellite. Two detached thin volcanic ash plumes from eruption ydy. One to flight level 100 (3000m) moving w and another to flight level 230 (6900m) moving southwest. Both volcanic ash plumes should dissipate by t+12 hour. Konon.

Original Message :

Received FVXX24 at 10:13 UTC, 19/04/21 from KNES
VA ADVISORY
DTG: 20210419/1008Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/052
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: NO CURRENT ERUPTION. DETACHED
VA PLUMES.
OBS VA DTG: 19/0940Z
OBS VA CLD: SFC/FL100 N1333 W06735 - N1333 W06619 - N1254 W06533 - N1220 W06530 - N1219 W06641 - N1244 W06750 - N1333 W06735 MOV W 20KT SFC/FL230 N1126 W06242 - N1120 W06222 - N1120 W06222 - N1054 W06200 - N1049 W06306 - N1053 W06333 - N1113 W06336 - N1125 W06314 - N1126 W06242 MOV SW 15KT
FCST VA CLD +6HR: 19/1600Z SFC/FL100 N1339 W07044 - N1335 W06947 - N1329 W06832 - N1237 W06820 - N1241 W06917 - N1242 W07023 - N1303 W07050 - N1339 W07044 SFC/FL230 N1020 W06449 - N1011 W06426 - N0953 W06421 - N0938 W06432 - N0938 W06459 - N1005 W06514 - N1020 W06449
FCST VA CLD +12HR: 19/2200Z SFC/FL100 NO VA
EXP SFC/FL230 NO VA EXP
FCST VA CLD +18HR: 20/0400Z NO VA EXP
RMK: NO CURRENT VA EMS DETECTED FM SUMMIT ON
STLT. TWO DETACHED THIN VA PLUMES FM ERUPTION
YDY. ONE TO FL100 MOVG W AND ANOTHER TO FL230
MOVG SW. BOTH VA PLUMES SHUD DSIPT BY T+12 HR.
...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210419/1615Z

Volcanic Ash Advisory issued on 2021-04-19 at 04:08 UTC.

Key information extracted from original VAA message :

No current eruption. Detached volcanic ash.
Vaa updated early due to volcanic ash mvmnt. No current volcanic ash emission detected but two detached volcanic ash plumes likely to move further than earlier forecast. Volcanic ash to flight level 100 (3000m) to moving w and flight level 230 (6900m) moving southwest. New volcanic ash possible at any. Konon.

Original Message :

Received FVXX24 at 04:11 UTC, 19/04/21 from KNES
VA ADVISORY
DTG: 20210419/0408Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/051
INFO SOURCE: GOES-16. NWP MODELS. RADIOSONDE.
ERUPTION DETAILS: NO CURRENT ERUPTION. DETACHED
VA PLUMES.
OBS VA DTG: 19/0320Z
OBS VA CLD: SFC/FL100 N1325 W06441 - N1321 W06241 - N1244 W06244 - N1234 W06356 - N1306 W06444 - N1325 W06441 MOV W 20KT SFC/FL230 N1228 W06205 - N1159 W06135 - N1145 W06205 - N1210 W06236 - N1228 W06205 MOV SW 15KT
FCST VA CLD +6HR: 19/0930Z SFC/FL100 N1337 W06647 - N1326 W06434 - N1244 W06441 - N1244 W06659 - N1337 W06647 SFC/FL230 N1125 W06253 - N1048 W06220 - N1024 W06301 - N1102 W06326 - N1125 W06253
FCST VA CLD +12HR: 19/1530Z SFC/FL100 N1339 W06907 - N1334 W06644 - N1244 W06656 - N1250 W06911 - N1339 W06907 SFC/FL230 NO VA EXP
FCST VA CLD +18HR: 19/2130Z SFC/FL100 NO VA EXP
RMK: VAA UPDATED EARLY DUE TO VA MVMNT. NO
CURRENT VA EMS DETECTED BUT TWO DETACHED VA
PLUMES LIKELY TO MOV FURTHER THAN EARLIER FCST.
VA TO FL100 TO MOVG W AND FL230 MOVG SW. NEW
VA PSBL AT ANY TIME. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210419/1015Z

Volcanic Ash Advisory issued on 2021-04-19 at 02:02 UTC.

Key information extracted from original VAA message :

Continuous volcanic ash emission.
Continuous volcanic ash emission move w from summit ext 110 nm. Volcanic ash em move southwest centered 60 nm southwest from summit. Nwp models forecast little change in wind direction through t+12. Tuggle.

Original Message :

Received FVXX24 at 02:06 UTC, 19/04/21 from KNES
VA ADVISORY
DTG: 20210419/0202Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/050
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: CONS VA EMS
OBS VA DTG: 19/0120Z
OBS VA CLD: SFC/FL100 N1341 W06304 - N1323 W06110 - N1318 W06110 - N1313 W06305 - N1341 W06304 MOV W 20KT SFC/FL250 N1312 W06256 - N1306 W06110 - N1222 W06120 - N1253 W06300 - N1312 W06256 MOV SW 20KT
FCST VA CLD +6HR: 19/0730Z SFC/FL100 N1345 W06335 - N1325 W06110 - N1317 W06111 - N1311 W06334 - N1345 W06335 SFC/FL250 N1300 W06314 - N1220 W06108 - N1147 W06114 - N1229 W06327 - N1300 W06314
FCST VA CLD +12HR: 19/1330Z SFC/FL100 N1347 W06358 - N1325 W06110 - N1317 W06109 - N1310 W06358 - N1347 W06358 SFC/FL250 N1244 W06331 - N1156 W06113 - N1125 W06123 - N1209 W06347 - N1244 W06331
FCST VA CLD +18HR: 19/1930Z NO VA EXP
RMK: CONS VA EMS MOV W FM SUMMIT EXT 110 NM. VA
EM MOV SW CNTRD 60 NM SW FM SUMMIT. NWP MDLS FCST
LTLCG IN WIND DIR THRU T+12. ...TUGGLE
NXT ADVISORY: WILL BE ISSUED BY 20210419/0800Z

Volcanic Ash Advisory issued on 2021-04-18 at 23:34 UTC.

Key information extracted from original VAA message :

Continuous volcanic ash emission.
Continuous volcanic ash emission move w from summit ext 60nm at flight level 100 (3000m) volcanic ash em move southwest centered apprx 30nm southwest of summit. Nwp models forecast little change in wind direction through t+12. Tuggle.

Original Message :

Received FVXX24 at 23:36 UTC, 18/04/21 from KNES
VA ADVISORY
DTG: 20210418/2334Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/049
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
VOLCAT. PILOT RPRT.
ERUPTION DETAILS: CONS VA EMS
OBS VA DTG: 18/2250Z
OBS VA CLD: SFC/FL100 N1332 W06213 - N1324 W06110 - N1317 W06111 - N1314 W06213 - N1332 W06213 MOV W 20KT SFC/FL200 N1320 W06201 - N1309 W06105 - N1245 W06116 - N1256 W06215 - N1314 W06213 - N1320 W06201 MOV SW 15KT
FCST VA CLD +6HR: 19/0500Z SFC/FL100 N1337 W06251 - N1325 W06109 - N1317 W06111 - N1311 W06251 - N1337 W06251 SFC/FL200 N1304 W06222 - N1253 W06105 - N1223 W06114 - N1237 W06228 - N1304 W06222
FCST VA CLD +12HR: 19/1100Z SFC/FL100 N1342 W06330 - N1326 W06109 - N1318 W06110 - N1307 W06329 - N1342 W06330 SFC/FL200 N1247 W06235 - N1234 W06101 - N1205 W06108 - N1218 W06244 - N1247 W06235
FCST VA CLD +18HR: 19/1700Z NO VA EXP
RMK: CONS VA EMS MOV W FM SUMMIT EXT 60NM AT
FL100. VA EM MOV SW CNTRD APPRX 30NM SW OF
SUMMIT. NWP MDLS FCST LTLCG IN WIND DIR THRU
T+12. ...TUGGLE
NXT ADVISORY: WILL BE ISSUED BY 20210419/0530Z

Volcanic Ash Advisory issued on 2021-04-18 at 21:48 UTC.

Key information extracted from original VAA message :

New volcanic ash emission.
New volcanic ash emission observation in satellite and repeted by meteorological watch office. Light volcanic ash move w at flight level 70 (2100m) new volcanic ash emission move southwest at flight level 150 (4500m) based on nwp model. Tuggle.

Original Message :

Received FVXX24 at 21:52 UTC, 18/04/21 from KNES
VA ADVISORY
DTG: 20210418/2148Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/048
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 18/2100Z
OBS VA CLD: SFC/FL070 N1344 W06311 - N1321 W06110 - N1313 W06110 - N1306 W06311 - N1344 W06311 MOV W 15KT SFC/FL150 N1321 W06110 - N1319 W06109 - N1257 W06119 - N1313 W06141 - N1321 W06110 MOV SW 10KT
FCST VA CLD +6HR: 19/0300Z SFC/FL070 N1345 W06312 - N1322 W06110 - N1313 W06111 - N1307 W06311 - N1345 W06312 SFC/FL150 N1326 W06110 - N1317 W06110 - N1246 W06135 - N1255 W06203 - N1326 W06110
FCST VA CLD +12HR: 19/0900Z SFC/FL070 NO VA
EXP SFC/FL150 N1324 W06108 - N1318 W06109 - N1244
W06159 - N1305 W06227 - N1324 W06108
FCST VA CLD +18HR: 19/1500Z NO VA EXP
RMK: NEW VA EMS OBS IN STLT AND RPTD BY MWO.
LIGHT VA MOV W AT FL070. NEW VA EMS MOV SW AT
FL150. FL BASED ON NWP MDL WINDS. ...TUGGLE
NXT ADVISORY: WILL BE ISSUED BY 20210419/0345Z

Volcanic Ash Advisory issued on 2021-04-17 at 21:22 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash has dispd.
Corr for observation. Volcanic ash not obsd in satellite imagery either attached or remnant. No pireps sent from piarco meteorological watch office report volcanic ash. No volcanic ash reports have been.

Original Message :

Received FVXX25 at 21:24 UTC, 17/04/21 from KNES
VA ADVISORY -CORRECTION
DTG: 20210417/2122Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/047
INFO SOURCE: GOES-16. PIARCO MWO. PILOT RPRT.
ERUPTION DETAILS: REMNANT VA HAS DISPD.
OBS VA DTG: 17/2050Z
OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA.
FCST VA CLD +6HR: 18/0300Z NO VA EXP
FCST VA CLD +12HR: 18/0900Z NO VA EXP
FCST VA CLD +18HR: 18/1500Z NO VA EXP
RMK: CORR FOR OBS. VA NOT OBSD IN STLT IMAGERY
EITHER ATTACHED OR REMNANT. NO PIREPS SENT FM
PIARCO MWO RPRT VA. NO VA RPRTS HAVE BEEN

Volcanic Ash Advisory issued on 2021-04-17 at 15:35 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash.
Mostly gases and perhaps some volcanic ash remains suspended in the highlighted area. This correlates well with recent new explosive emission may occur without warning. Lee.

Original Message :

Received FVXX25 at 15:38 UTC, 17/04/21 from KNES
VA ADVISORY
DTG: 20210417/1535Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/046
INFO SOURCE: GOES-16. PILOT RPRT.
ERUPTION DETAILS: REMNANT VA.
OBS VA DTG: 17/1510Z
OBS VA CLD: SFC/FL150 N1515 W05955 - N1359 W05934 - N1359 W06124 - N1330 W06608 - N1436 W06612 - N1511 W06338 - N1515 W05955 MOV SW 5KT
FCST VA CLD +6HR: 17/2100Z NO VA EXP
FCST VA CLD +12HR: 18/0300Z NO VA EXP
FCST VA CLD +18HR: 18/0900Z NO VA EXP
RMK: MOSTLY GASES AND PERHAPS SOME VA REMAINS
SUSPENDED IN THE HIGHLIGHTED AREA. THIS
CORRELATES WELL WITH RECENT PIREPS. NEW EXPLOSIVE
EMS MAY OCCUR WITHOUT WARNING. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210417/2130Z

Volcanic Ash Advisory issued on 2021-04-17 at 11:40 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash.
Faint signal of remnant volcanic ash noted in infrared satellite imagery. This area should disperse as it drifts south over next 6 hours. Explosive emission may occur without warning. Lee.

Original Message :

Received FVXX25 at 11:41 UTC, 17/04/21 from KNES
VA ADVISORY
DTG: 20210417/1140Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/045
INFO SOURCE: GOES-16.
ERUPTION DETAILS: REMNANT VA.
OBS VA DTG: 25/1110Z
OBS VA CLD: SFC/FL150 N1532 W05920 - N1349 W05840 - N1305 W06020 - N1414 W06035 - N1335 W06444 - N1438 W06404 - N1532 W05920 MOV S 5KT
FCST VA CLD +6HR: 25/1700Z NO VA EXP
FCST VA CLD +12HR: 25/2300Z NO VA EXP
FCST VA CLD +18HR: 26/0500Z NO VA EXP
RMK: FAINT SIGNAL OF REMNANT VA NOTED IN IR STLT
IMAGERY. THIS AREA SHOULD DISPERSE AS IT DRIFTS S
OVER NEXT 6 HRS. EXPLOSIVE EMS MAY OCCUR WITHOUT
WARNING. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210417/1745Z

Volcanic Ash Advisory issued on 2021-04-17 at 05:51 UTC.

Key information extracted from original VAA message :

No current eruption. Volcanic ash plume from earlier eruption.
Large thin detached volcanic ash plume detected on satellite over northeastern caribbean moving w. Plume should dissipate in next 6 hour. New volcanic ash emission possible at any. Konon.

Original Message :

Received FVXX25 at 05:54 UTC, 17/04/21 from KNES
VA ADVISORY
DTG: 20210417/0551Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/044
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: NO CURRENT ERUPTION. VA PLUME
FM EARLIER ERUPTION
OBS VA DTG: 17/0530Z
OBS VA CLD: SFC/FL150 N1728 W06244 - N1707 W06230 - N1625 W06246 - N1536 W06241 - N1459 W06229 - N1449 W06128 - N1453 W06001 - N1430 W06016 - N1424 W06054 - N1415 W06137 - N1353 W06241 - N1347 W06350 - N1347 W06503 - N1407 W06552 - N1449 W06614 - N1534 W06608 - N1629 W06446 - N1705 W06339 - N1728 W06244 MOV W 10KT
FCST VA CLD +6HR: 17/1130Z NO VA EXP
FCST VA CLD +12HR: 17/1730Z NO VA EXP
FCST VA CLD +18HR: 17/2330Z NO VA EXP
RMK: LRG THIN DETACHED VA PLUME DETECTED ON STLT
OVR NERN CARIB MOVG W. PLUME SHUD DSIPT IN NXT 6
HR. NEW VA EMS PSBL AT ANY TTIME. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210417/1145Z

Volcanic Ash Advisory issued on 2021-04-17 at 00:03 UTC.

Key information extracted from original VAA message :

Volcanic ash emission observation in satellite imagery.
Hgh level weakening remnant volcanic ash emission at flight level 170 (5100m) observation 150 nmi nw from summit exp disp by t+12. Level persistent volcanic ash emission observation at 150 moving w from summit. Volcanic ash hgt/dir from prev vaa and satellite. Nwp models shows continue w-ly movement with level emission through t+18. Sambucci.

Original Message :

Received FVXX25 at 00:07 UTC, 17/04/21 from KNES
VA ADVISORY
DTG: 20210417/0003Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/043
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
ASH3D. VOLCAT.
ERUPTION DETAILS: VA EMS OBS IN STLT IMAGERY
OBS VA DTG: 16/2320Z
OBS VA CLD: SFC/FL150 N1358 W06352 - N1328 W06111 - N1311 W06112 - N1320 W06352 - N1358 W06352 MOV W 10KT SFC/FL170 N1658 W06313 - N1627 W06220 - N1350 W06124 - N1342 W06344 - N1658 W06313 MOV N 10KT
FCST VA CLD +6HR: 17/0530Z SFC/FL150 N1407 W06401 - N1330 W06108 - N1308 W06108 - N1314 W06409 - N1407 W06401 SFC/FL170 N1726 W06405 - N1714 W06302 - N1357 W06338 - N1406 W06432 - N1726 W06405
FCST VA CLD +12HR: 17/1130Z SFC/FL150 N1413 W06419 - N1331 W06108 - N1308 W06110 - N1311 W06423 - N1413 W06419 SFC/FL170 NO VA EXP
FCST VA CLD +18HR: 17/1730Z SFC/FL150 N1417 W06416 - N1331 W06107 - N1314 W06107 - N1313 W06420 - N1417 W06416
RMK: HGH LVL WKNG REMNANT VA EMS AT FL170 OBS 150 NMI
NW FM SUMMIT EXP DISP BY T+12. LVL PRSTNT VA EMS OBS AT
FL 150 MOVG W FM SUMMIT. VA HGT/DIR FM PREV VAA
AND STLT. NWP MDLS SHOWS CONT W-LY MOVMT WITH LVL
EMS THRU T+18. ...SAMBUCCI
NXT ADVISORY: WILL BE ISSUED BY 20210417/0600Z

Volcanic Ash Advisory issued on 2021-04-16 at 20:15 UTC.

Key information extracted from original VAA message :

Volcanic ash emission continue observation in satellite imagery.
Corrected for vag. Hgh level remant volcanic ash emission observation north east from summit exp disp by t+6. Level volcanic ash emission observation at flight level 150 (4500m) moving w and flight level 170 (5100m) moving nnw from summit. Volcanic ash height from nwp volcanic ash direction from ash3d. Nwp models shows continue w-ly and nnw-ly movement through t+12 and t+18. Sambucci // end part 01 //.

Original Message :

Received FVXX25 at 20:22 UTC, 16/04/21 from KNES
VA ADVISORY -CORRECTION
DTG: 20210416/2015Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/042
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
ASH3D. VOLCAT.
ERUPTION DETAILS: VA EMS CONT OBS IN STLT IMAGERY
OBS VA DTG: 16/1930Z
OBS VA CLD: SFC/FL150 N1404 W06348 - N1335 W06110 - N1311 W06111 - N1307 W06359 - N1404 W06348 MOV W 15KT SFC/FL170 N1629 W06329 - N1617 W06228 - N1326 W06216 - N1335 W06343 - N1629 W06329 MOV N 20KT SFC/FL190 N1420 W06054 - N1358 W06008 - N1316 W06059 - N1326 W06123 - N1420 W06054 MOV NE 5KT
5KT
FCST VA CLD +6HR: 17/0130Z SFC/FL150 N1420 W06437 - N1338 W06104 - N1307 W06106 - N1303 W06444 - N1420 W06437 SFC/FL170 N1648 W06416 - N1641 W06250 - N1343 W06313 - N1408 W06437 - N1648 W06416 SFC/FL190 NO VA EXP
W06416 SFC/FL190 NO VA EXP
FCST VA CLD +12HR: 17/0730Z SFC/FL150 N1434 W06503 - N1335 W06106 - N1302 W06110 - N1258 W06512 - N1434 W06503 SFC/FL170 N1705 W06514 - N1702 W06336 - N1416 W06353 - N1439 W06519 - N1705 W06514
N1705 W06514
FCST VA CLD +18HR: 17/1330Z SFC/FL150 N1446 W06526 - N1333 W06106 - N1300 W06110 - N1300 W06535 - N1446 W06526 SFC/FL170 NO VA EXP
W06535 - N1446 W06526 SFC/FL170 NO VA EXP
RMK: CORRECTED FOR VAG. HGH LVL REMANT VA EMS OBS
NE FM SUMMIT EXP DISP BY T+6. LVL VA EMS OBS AT
FL150 MOVG W AND FL170 MOVG NNW FM SUMMIT. VA HGT
FM NWP MDLS. VA DIR FM ASH3D. NWP MDLS SHOWS CONT
W-LY AND NNW-LY MOVMT THRU T+12 AND T+18.
...SAMBUCCI
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-16 at 15:24 UTC.

Key information extracted from original VAA message :

Continuous volcanic ash emission with remnant volcanic ash.

Original Message :

Received FVXX25 at 15:42 UTC, 16/04/21 from KNES
VA ADVISORY
DTG: 20210416/1524Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/041
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
ASH3D. VOLCAT. RADIOSONDE.
ERUPTION DETAILS: CONS VA EMS WITH REMNANT VA.
OBS VA DTG: 16/1500Z
OBS VA CLD: SFC/FL100 N1447 W06223 - N1436 W06159 - N1340 W06149 - N1341 W06217 - N1447 W06223 MOV NW 25KT SFC/FL120 N1334 W06149 - N1324 W06109 - N1319 W06112 - N1324 W06152 - N1334 W06149 MOV W 20KT SFC/FL150 N1340 W06218 - N1338 W06144 - N1320 W06114 - N1305 W06112 - N1305 W06152 - N1340 W06218 MOV W 10KT SFC/FL180 N1343 W06033 - N1325 W06029 - N1317 W06113 - N1325 W06119 - N1343 W06033 MOV NE 10KT SFC/FL220 N1323 W06030 - N1301 W06054 - N1309 W06110 - N1316 W06112 - N1323 W06030 MOV SE 5KT
N1323 W06030 MOV SE 5KT
FCST VA CLD +6HR: 16/2100Z SFC/FL100 N1610 W06345 - N1542 W06234 - N1405 W06232 - N1417 W06354 - N1610 W06345 SFC/FL120 N1356 W06241 - N1322 W06109 - N1317 W06113 - N1333 W06247 - N1356 W06241 SFC/FL150 N1416 W06354 - N1406 W06231 - N1311 W06157 - N1319 W06324 - N1416 W06354 SFC/FL180 NO VA EXP SFC/FL220 NO VA EXP
SFC/FL180 NO VA EXP SFC/FL220 NO VA EXP
FCST VA CLD +12HR: 17/0300Z SFC/FL100 N1701 W06450 - N1643 W06327 - N1424 W06334 - N1454 W06507 - N1701 W06450 SFC/FL120 N1353 W06308 - N1320 W06110 - N1315 W06110 - N1324 W06241 - N1353 W06308 SFC/FL150 N1452 W06506 - N1423 W06334 - N1315 W06307 - N1333 W06422 - N1452 W06506
W06506
FCST VA CLD +18HR: 17/0900Z SFC/FL100 NO VA
EXP SFC/FL120 N1359 W06308 - N1319 W06109 - N1313
W06109 - N1329 W06314 - N1359 W06308 SFC/FL150 NO
VA EXP
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-16 at 12:44 UTC.

Key information extracted from original VAA message :

New eruption around 10:00 UTC.
New eruption obsd by satellite between 10:00 UTC and 10:10 UTC volcanic ash extends over 40 nmi nw and about 20 nmi ene // end part 01 //.

Original Message :

Received FVXX25 at 12:50 UTC, 16/04/21 from KNES
VA ADVISORY
DTG: 20210416/1244Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/040
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
ERUPTION DETAILS: NEW ERUPTION ARND 1000Z.
OBS VA DTG: 16/1200Z
OBS VA CLD: SFC/FL130 N1354 W06146 - N1320 W06110 - N1318 W06111 - N1323 W06140 - N1354 W06146 MOV NW 25KT SFC/FL180 N1335 W06049 - N1321 W06053 - N1319 W06111 - N1323 W06116 - N1335 W06049 MOV SE 15KT SFC/FL240 N1322 W06052 - N1307 W06059 - N1319 W06113 - N1320 W06111 - N1322 W06052 MOV SE 10KT
10KT
FCST VA CLD +6HR: 16/1800Z SFC/FL130 N1454 W06150 - N1322 W06111 - N1316 W06238 - N1438 W06322 - N1454 W06150 SFC/FL180 N1437 W05959 - N1326 W05902 - N1322 W06111 - N1358 W06144 - N1437 W05959 SFC/FL240 N1322 W05902 - N1201 W05723 - N1210 W05943 - N1316 W06116 - N1322 W05902
N1210 W05943 - N1316 W06116 - N1322 W05902
FCST VA CLD +12HR: 17/0000Z SFC/FL130 N1550 W06302 - N1405 W06259 - N1404 W06553 - N1547 W06519 - N1550 W06302 SFC/FL180 N1436 W06005 - N1431 W05802 - N1257 W05809 - N1317 W06010 - N1436 W06005 SFC/FL240 N1325 W05933 - N1230 W05638 - N1114 W05714 - N1218 W06006 - N1325 W05933
W05933
FCST VA CLD +18HR: 17/0600Z SFC/FL130 N1651 W06349 - N1453 W06408 - N1428 W06718 - N1613 W06649 - N1651 W06349 SFC/FL180 NO VA EXP SFC/FL240 NO VA EXP
EXP SFC/FL240 NO VA EXP
RMK: NEW ERUPTION OBSD BY STLT BTWN 1000Z AND
1010Z. VA EXTDS OVR 40 NMI NW AND ABT 20 NMI ENE
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-16 at 08:05 UTC.

Key information extracted from original VAA message :

Light volcanic ash emission continue.
Thin narrow volcanic ash plume detected on satellite moving w of summit. Hotpot seen on swir. Little change in dir/spd of winds next 6 hour. Konon.

Original Message :

Received FVXX25 at 08:07 UTC, 16/04/21 from KNES
VA ADVISORY
DTG: 20210416/0805Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/039
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: LGT VA EMS CONT
OBS VA DTG: 16/0740Z
OBS VA CLD: SFC/FL080 N1327 W06138 - N1321 W06111 - N1318 W06111 - N1318 W06138 - N1327 W06138 MOV W 10KT
FCST VA CLD +6HR: 16/1330Z SFC/FL080 N1332 W06204 - N1322 W06110 - N1318 W06110 - N1325 W06205 - N1332 W06204
FCST VA CLD +12HR: 16/1930Z NO VA EXP
FCST VA CLD +18HR: 17/0130Z NO VA EXP
RMK: THIN NARROW VA PLUME DETECTED ON STLT MOVG W
OF SUMMIT. HOTPOT SEEN ON SWIR. LTL CHG IN
DIR/SPD OF FL WINDS NXT 6 HR. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210416/1400Z

Volcanic Ash Advisory issued on 2021-04-16 at 02:16 UTC.

Key information extracted from original VAA message :

New volcanic ash emission.
Volcanic ash detected on satellite moving w of summit. Winds forecast to veer slightly next 6 hour. Volcanic ash plume from earlier emission has dissipated. Konon.

Original Message :

Received FVXX25 at 02:20 UTC, 16/04/21 from KNES
VA ADVISORY
DTG: 20210416/0216Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/038
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 16/0200Z
OBS VA CLD: SFC/FL080 N1330 W06132 - N1322 W06111 - N1317 W06111 - N1316 W06134 - N1330 W06132 MOV W 10KT
FCST VA CLD +6HR: 16/0800Z SFC/FL080 N1359 W06246 - N1322 W06108 - N1316 W06110 - N1332 W06249 - N1359 W06246
FCST VA CLD +12HR: 16/1400Z NO VA EXP
FCST VA CLD +18HR: 16/2000Z NO VA EXP
RMK: VA DETECTED ON STLT MOVG W OF SUMMIT. FL
WINDS FCST TO VEER SLGTLY NXT 6 HR. VA PLUME FM
EARLIER EMS HAS DSIPTD. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210416/0815Z

Volcanic Ash Advisory issued on 2021-04-15 at 21:26 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash from earlier eruption.
Light remnant volcanic ash from earlier eruption extending to roughly 150nm nnw of summit and moving nnw. Nwp forecast winds to remain slow and move nw at flight level 130 (3900m) through t+12 before volcanic ash likely from nwp. Mlevine.

Original Message :

Received FVXX25 at 21:27 UTC, 15/04/21 from KNES
VA ADVISORY
DTG: 20210415/2126Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/037
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: REMNANT VA FM EARLIER ERUPTION
OBS VA DTG: 15/2100Z
OBS VA CLD: SFC/FL130 N1549 W06131 - N1534 W06109 - N1434 W06122 - N1445 W06209 - N1549 W06131 MOV N 5KT
FCST VA CLD +6HR: 16/0300Z SFC/FL130 N1615 W06146 - N1601 W06049 - N1442 W06200 - N1501 W06243 - N1615 W06146
FCST VA CLD +12HR: 16/0900Z SFC/FL130 N1628 W06203 - N1612 W06107 - N1456 W06228 - N1513 W06317 - N1628 W06203
FCST VA CLD +18HR: 16/1500Z NO VA EXP
RMK: LGT REMNANT VA FM EARLIER ERUPTION XTNDG TO
RUFLY 150NM NNW OF SUMMIT AND MOVG NNW. NWP FCSTS
WINDS TO RMN SLOW AND MOV NW AT FL130 THRU T+12
BFR VA LKLY DSIPTS. FL FM NWP ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210416/0330Z

Volcanic Ash Advisory issued on 2021-04-15 at 15:38 UTC.

Key information extracted from original VAA message :

Intermittent volcanic ash emission.
Volcanic ash emission noted at 11:14 UTC and 13:33 UTC since prev advisory. All volcanic ash moving nnw. Estd from nwp nwp models forecast further volcanic ash emission to move nw by t+12 and wnw by t+18 with present volcanic ash forecast to move north then nne over dominica before dispg. Hosley.

Original Message :

Received FVXX25 at 15:41 UTC, 15/04/21 from KNES
VA ADVISORY
DTG: 20210415/1538Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/036
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: INTMT VA EMS.
OBS VA DTG: 15/1510Z
OBS VA CLD: SFC/FL120 N1449 W06120 - N1318 W06109 - N1316 W06114 - N1446 W06138 - N1449 W06120 MOV N 15KT
FCST VA CLD +6HR: 15/2100Z SFC/FL120 N1534 W06112 - N1313 W06111 - N1422 W06158 - N1528 W06141 - N1534 W06112
FCST VA CLD +12HR: 16/0300Z SFC/FL120 N1550 W06201 - N1453 W06119 - N1315 W06111 - N1346 W06212 - N1447 W06250 - N1550 W06201
FCST VA CLD +18HR: 16/0900Z SFC/FL120 N1538 W06222 - N1315 W06111 - N1347 W06232 - N1508 W06320 - N1538 W06222
RMK: VA EMS NOTED AT 1145Z AND 1330Z SINCE PREV
ADVY. ALL VA MOVG NNW. FL ESTD FM NWP MDLS. NWP
MDLS FCST FURTHER VA EMS TO MOV NW BY T+12 AND
WNW BY T+18 WITH PRESENT VA FCST TO MOV N THEN
NNE OVR DOMINICA BFR DISPG. ...HOSLEY
NXT ADVISORY: WILL BE ISSUED BY 20210415/2145Z

Volcanic Ash Advisory issued on 2021-04-15 at 09:44 UTC.

Key information extracted from original VAA message :

New volcanic ash emission approximate 08:85 UTC.
Narrow dense volcanic ash plume detected on satellite moving nnw of summit. Confirmed by ttzp meteorological watch office. Nwp model winds no change forecast next 6 hour. Detacted plume about 1000 nm to e over tropopause atlantic has dissipated. Konon.

Original Message :

Received FVXX25 at 09:47 UTC, 15/04/21 from KNES
VA ADVISORY
DTG: 20210415/0944Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/035
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
VOLCAT.
ERUPTION DETAILS: NEW VA EMS APRX 0850Z
OBS VA DTG: 15/0920Z
OBS VA CLD: SFC/FL120 N1335 W06111 - N1319 W06110 - N1319 W06112 - N1332 W06119 - N1335 W06111 MOV N 10KT
FCST VA CLD +6HR: 15/1530Z SFC/FL120 N1419 W06116 - N1319 W06110 - N1319 W06113 - N1410 W06131 - N1419 W06116
FCST VA CLD +12HR: 15/2130Z NO VA EXP
FCST VA CLD +18HR: 16/0330Z NO VA EXP
RMK: NARROW DENSE VA PLUME DETECTED ON STLT MOVG
NNW OF SUMMIT. CONFIRMED BY TTZP MWO. NWP MDL
WINDS NO CHG FCST NXT 6 HR. DETACTED PLUME ABOUT
1000 NM TO E OVR TROP ATLC HAS DSIPTD ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210415/1545Z

Volcanic Ash Advisory issued on 2021-04-15 at 04:17 UTC.

Key information extracted from original VAA message :

No current volcanic ash emission. Remnant volcanic ash.
No current volcanic ash emission detected. Hotspot remains on swir. Large thin volcanic ash area 800 to 1110 nm e of summit from earlier moving e. Plume should dissipate in next 6 hour. Konon.

Original Message :

Received FVXX25 at 04:25 UTC, 15/04/21 from KNES
VA ADVISORY
DTG: 20210415/0417Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/034
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: NO CURRENT VA EMS. REMNANT VA
PLUME.
OBS VA DTG: 15/0340Z
OBS VA CLD: SFC/FL400 N1408 W04528 - N1202 W04453 - N0956 W04513 - N1031 W05014 - N1153 W05030 - N1335 W05028 - N1346 W04742 - N1408 W04528 MOV E 45KT
FCST VA CLD +6HR: 15/0930Z NO VA EXP
FCST VA CLD +12HR: 15/1530Z NO VA EXP
FCST VA CLD +18HR: 15/2130Z NO VA EXP
RMK: NO CURRENT VA EMS DETECTED. HOTSPOT REMAINS
ON SWIR. LRG THIN VA AREA 800 TO 1110 NM E OF
SUMMIT FM EARLIER EUPTION MOVG E. PLUME SHUD
DSIPT IN NXT 6 HR. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20210415/1015Z

Volcanic Ash Advisory issued on 2021-04-14 at 22:24 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash from earlier explosion.
Possibly ongoing volcanic ash emission at flight level 120 (3600m) moving north to nnw through t+12. Remnant volcanic ash at flight level 350 (10500m) moving e through t+18. // end part 01 //.

Original Message :

Received FVXX25 at 22:37 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/2224Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/033
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT.
ERUPTION DETAILS: REMNANT VA FM EARLIER EXPLOSION
OBS VA DTG: 14/2200Z
OBS VA CLD: SFC/FL120 N1409 W06103 - N1318 W06100 - N1317 W06120 - N1407 W06120 - N1409 W06103 MOV N 5KT SFC/FL350 N1343 W05742 - N1343 W05604 - N1240 W05652 - N1241 W05757 - N1343 W05742 MOV E 45KT SFC/FL450 N1441 W05530 - N1346 W05529 - N1347 W05625 - N1429 W05624 - N1441 W05530 MOV E 45KT
45KT
FCST VA CLD +6HR: 15/0400Z SFC/FL120 N1437 W06106 - N1309 W06100 - N1307 W06118 - N1434 W06141 - N1437 W06106 SFC/FL350 N1338 W05453 - N1332 W05141 - N1154 W05141 - N1228 W05510 - N1338 W05453 SFC/FL450 N1529 W05054 - N1338 W05102 - N1337 W05317 - N1504 W05318 - N1529 W05054
N1337 W05317 - N1504 W05318 - N1529 W05054
FCST VA CLD +12HR: 15/1000Z SFC/FL120 N1519 W06107 - N1402 W06101 - N1352 W06129 - N1515 W06153 - N1519 W06107 SFC/FL350 N1332 W05141 - N1328 W04835 - N1110 W04830 - N1120 W05140 - N1332 W05141 SFC/FL450 N1611 W04455 - N1337 W04458 - N1340 W05100 - N1525 W05053 - N1611 W04455
W04455
FCST VA CLD +18HR: 15/1600Z SFC/FL120 NO VA
EXP SFC/FL350 N1346 W04425 - N1101 W04431 - N1112
W04832 - N1335 W04829 - N1346 W04425 SFC/FL450
N1714 W04139 - N1352 W04139 - N1346 W04453 -
N1618 W04458 - N1714 W04139
RMK: PSBLY ONGOING VA EMS AT FL120 MOVG N TO NNW
THRU T+12. REMNANT VA AT FL350 MOVG E THRU T+18.
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-14 at 17:44 UTC.

Key information extracted from original VAA message :

New explosive eruption.
Eruption started at 15:30 UTC volcanic ash obsd to 75 nmi e of summit approaching barbados. Nwp models forecast little change in volcanic ash movement through t+18. Remnant volcanic ash from prev advisory likely to disp by t+6. Hosley // end part 01 //.

Original Message :

Received FVXX25 at 17:52 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/1744Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/032
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: NEW EXPLOSIVE ERUPTION.
OBS VA DTG: 14/1720Z
OBS VA CLD: SFC/FL110 N1334 W06118 - N1324 W06107 - N1317 W06111 - N1326 W06123 - N1334 W06118 MOV NW 10KT SFC/FL280 N1319 W05613 - N1314 W05545 - N1155 W05622 - N1203 W05651 - N1319 W05613 MOV E 30KT SFC/FL320 N1323 W06105 - N1313 W05953 - N1249 W06001 - N1319 W06113 - N1323 W06105 MOV E 30KT SFC/FL400 N1347 W06014 - N1344 W05940 - N1312 W05953 - N1317 W06022 - N1347 W06014 MOV E 35KT
35KT
FCST VA CLD +6HR: 14/2330Z SFC/FL110 N1403 W06119 - N1317 W06110 - N1319 W06121 - N1356 W06150 - N1403 W06119 SFC/FL280 NO VA EXP SFC/FL320 N1323 W06111 - N1312 W05659 - N1201 W05747 - N1317 W06111 - N1323 W06111 SFC/FL450 N1420 W05624 - N1313 W05658 - N1316 W05805 - N1404 W05733 - N1420 W05624
N1420 W05624
FCST VA CLD +12HR: 15/0530Z SFC/FL110 NO VA
EXP SFC/FL320 N1325 W06108 - N1304 W05335 - N1036
W05427 - N1316 W06113 - N1325 W06108 SFC/FL450 NO
VA EXP
FCST VA CLD +18HR: 15/1130Z SFC/FL320 N1331 W05637 - N1254 W05111 - N1023 W05144 - N1125 W05715 - N1331 W05637
W05715 - N1331 W05637
RMK: ERUPTION STARTED AT 1530Z. VA OBSD TO 75 NMI
E OF SUMMIT APCHG BARBADOS. NWP MDLS FCST LTLCG
IN VA MOVMT THRU T+18. REMNANT VA FM PREV ADVY
LKLY TO DISP BY T+6. ...HOSLEY
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-14 at 13:58 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash obsd.
Volcanic ash from 14 0230 UTC eruption obsd about 300 nmi e of summit. No volcanic ash em obsd since 14/0230z. Other volcanic ash has disp. Further activity is possible. Hosley.

Original Message :

Received FVXX25 at 14:01 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/1358Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/031
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: REMNANT VA OBSD.
OBS VA DTG: 14/1330Z
OBS VA CLD: SFC/FL280 N1346 W05731 - N1343 W05647 - N1217 W05707 - N1217 W05752 - N1346 W05731 MOV E 30KT
FCST VA CLD +6HR: 14/1930Z NO VA EXP
FCST VA CLD +12HR: 15/0130Z NO VA EXP
FCST VA CLD +18HR: 15/0730Z NO VA EXP
RMK: VA FM 14/0230Z ERUPTION OBSD ABT 300 NMI E
OF SUMMIT. NO VA EM OBSD SINCE 14/0230Z. OTHER VA
HAS DISP. FURTHER ACT IS PSBL. ...HOSLEY
NXT ADVISORY: WILL BE ISSUED BY 20210414/2000Z

Volcanic Ash Advisory issued on 2021-04-14 at 08:00 UTC.

Key information extracted from original VAA message :

Volcanic ash to flight level 400 (12000m) continue move quickly e from summit.
Volcanic ash to flight level 400 (12000m) now move e ext 200 nm from and detached from summit. Remnant volcanic ash to flight level 350 (10500m) up to 800 nm ese of summit. Volcanic ash to flight level 110 (3300m) move slowly north 30 nm up to 30 nm from summit. Flight level 400 (12000m) winds exp to increase by t+12 with little change exp at other s. Clark // end part 01 //.

Original Message :

Received FVXX25 at 08:02 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/0800Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/030
INFO SOURCE: GOES-16. NWP MODELS. ASH3D.
ERUPTION DETAILS: VA TO FL400 CONT MOV QUICKLY E
FM SUMMIT.
OBS VA DTG: 14/0740Z
OBS VA CLD: SFC/FL110 N1346 W06108 - N1320 W06107 - N1320 W06113 - N1343 W06127 - N1346 W06108 MOV N 5KT SFC/FL350 N1406 W05529 - N1237 W04734 - N0547 W04852 - N0732 W05642 - N1406 W05529 MOV E 25KT SFC/FL400 N1433 W05747 - N1234 W05720 - N1227 W05932 - N1313 W06109 - N1338 W06102 - N1423 W05910 - N1433 W05747 MOV E 45KT
FCST VA CLD +6HR: 14/1330Z SFC/FL110 N1356 W06107 - N1320 W06107 - N1319 W06111 - N1353 W06131 - N1356 W06107 SFC/FL350 N1343 W05354 - N1223 W04635 - N0537 W04700 - N0713 W05503 - N1343 W05354 SFC/FL400 N1431 W05903 - N1419 W05444 - N1152 W05439 - N1307 W06110 - N1341 W06101 - N1431 W05903
FCST VA CLD +12HR: 14/1930Z SFC/FL110 NO VA
EXP SFC/FL350 N1328 W05222 - N1221 W04617 - N0534
W04644 - N0702 W05331 - N1328 W05222 SFC/FL400
N1405 W05323 - N1142 W05323 - N1255 W06018 -
N1401 W06018 - N1405 W05323
FCST VA CLD +18HR: 15/0130Z SFC/FL350 N1337 W04613 - N0644 W04635 - N0646 W05202 - N1315 W05121 - N1337 W04613 SFC/FL400 N1413 W05123 - N1125 W05131 - N1235 W05854 - N1355 W05902 - N1413 W05123
RMK: VA TO FL400 NOW MOV E EXT 200 NM FM AND
DETACHED FM SUMMIT. REMNANT VA TO FL350 UP TO 800
NM ESE OF SUMMIT. VA TO FL110 MOV SLOWLY N 30 NM
UP TO 30 NM FM SUMMIT. FL400 WINDS EXP TO INCR BY
T+12 WITH LTLCG EXP AT OTHER FLS. ...CLARK
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-14 at 03:56 UTC.

Key information extracted from original VAA message :

New eruption to flight level 400 (12000m) 14 0240 UTC.
Remnant volcanic ash to flight level 350 (10500m) continue move e up to 700 nm from summit. New eruption estd to flight level 400 (12000m) move e to 65 // end part 01 //.

Original Message :

Received FVXX25 at 04:02 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/0356Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/029
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. SOCIAL
MEDIA.
ERUPTION DETAILS: NEW ERUPTION TO FL400 14/0240Z
OBS VA DTG: 14/0330Z
OBS VA CLD: SFC/FL110 N1341 W06103 - N1320 W06108 - N1320 W06114 - N1336 W06124 - N1341 W06103 MOV N 5KT SFC/FL350 N1422 W05648 - N1300 W04858 - N0634 W05008 - N0552 W05405 - N0753 W05750 - N1422 W05648 MOV E 25KT SFC/FL400 N1341 W06039 - N1315 W06002 - N1253 W06022 - N1317 W06110 - N1328 W06111 - N1341 W06039 MOV E 40KT
N1328 W06111 - N1341 W06039 MOV E 40KT
FCST VA CLD +6HR: 14/0930Z SFC/FL110 N1353 W06103 - N1322 W06107 - N1321 W06114 - N1350 W06134 - N1353 W06103 SFC/FL350 N1349 W05508 - N1223 W04533 - N0517 W04624 - N0648 W05634 - N1349 W05508 SFC/FL400 N1355 W05835 - N1204 W05901 - N1311 W06114 - N1330 W06107 - N1355 W05835
N1311 W06114 - N1330 W06107 - N1355 W05835
FCST VA CLD +12HR: 14/1530Z SFC/FL110 NO VA
EXP SFC/FL350 N1338 W05320 - N1219 W04531 - N0501
W04626 - N0632 W05433 - N1338 W05320 SFC/FL400
N1402 W05555 - N1122 W05617 - N1240 W06022 -
N1341 W05956 - N1402 W05555
FCST VA CLD +18HR: 14/2130Z SFC/FL350 N1302 W05147 - N1219 W04522 - N0513 W04631 - N0611 W05320 - N1302 W05147 SFC/FL400 N1401 W05343 - N1034 W05404 - N1231 W05958 - N1342 W05935 - N1401 W05343
N1401 W05343
RMK: REMNANT VA TO FL350 CONT MOV E UP TO 700 NM
FM SUMMIT. NEW ERUPTION ESTD TO FL400 MOV E TO 65
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-14 at 02:58 UTC.

Key information extracted from original VAA message :

New volcanic ash em to flight level 110 (3300m) 14 0100 UTC.
Remnant volcanic ash continue move ese to flight level 350 (10500m) new volcanic ash em.

Original Message :

Received FVXX25 at 03:00 UTC, 14/04/21 from KNES
VA ADVISORY
DTG: 20210414/0258Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/028
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: NEW VA EM TO FL110 14/0100Z
OBS VA DTG: 14/0230Z
OBS VA CLD: SFC/FL110 N1334 W06107 - N1320 W06108 - N1318 W06113 - N1327 W06125 - N1334 W06107 MOV NW 5KT SFC/FL350 N1431 W05655 - N1249 W04858 - N0629 W05010 - N0550 W05416 - N0753 W05753 - N1431 W05655 MOV E 25KT
FCST VA CLD +6HR: 14/0830Z SFC/FL110 N1358 W06117 - N1321 W06108 - N1318 W06114 - N1341 W06152 - N1358 W06117 SFC/FL350 N1359 W05512 - N1222 W04529 - N0501 W04630 - N0655 W05634 - N1359 W05512
FCST VA CLD +12HR: 14/1430Z SFC/FL110 NO VA
EXP SFC/FL350 N1335 W05320 - N1217 W04521 - N0500
W04628 - N0635 W05432 - N1335 W05320
FCST VA CLD +18HR: 14/2030Z SFC/FL350 N1313 W05148 - N1216 W04521 - N0516 W04626 - N0619 W05320 - N1313 W05148
RMK: REMNANT VA CONT MOV ESE TO FL350. NEW VA EM
OBS ESTD TO FL110 FANNING N TO NW TO 15 NM FM
SUMMIT. FL110 VA EXP TO CONT MOV N AND NW AND
DSIPT BY T+12 HRS. ...CLARK
NXT ADVISORY: WILL BE ISSUED BY 20210414/0900Z

Volcanic Ash Advisory issued on 2021-04-13 at 23:16 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash emission observation in satellite imagery.
New volcanic ash emission possible with summit hotspot observation. Remnant volcanic ash emission from earlier 11:10 UTC eruption observation in satellite approx 600nm se from summit. Volcanic ash hgt/dir from prev vaa, stlt/nwp models shows continue se-ly movement through t+18. Sambucci.

Original Message :

Received FVXX25 at 23:20 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/2316Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/027
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
VOLCAT. RADIOSONDE.
ERUPTION DETAILS: REMNANT VA EMS OBS IN STLT
IMAGERY
OBS VA DTG: 13/2250Z
OBS VA CLD: SFC/FL350 N1346 W05852 - N1242 W05052 - N0545 W05248 - N0606 W05650 - N1220 W05933 - N1346 W05852 MOV SE 30KT
FCST VA CLD +6HR: 14/0500Z SFC/FL350 N1328 W05654 - N1228 W04557 - N0356 W04819 - N0435 W05632 - N1122 W05902 - N1328 W05654
FCST VA CLD +12HR: 14/1100Z SFC/FL350 N1305 W05523 - N1226 W04322 - N0312 W04418 - N0433 W05532 - N1305 W05523
FCST VA CLD +18HR: 14/1700Z SFC/FL350 N1250 W05258 - N1228 W04249 - N0304 W04331 - N0425 W05405 - N1250 W05258
RMK: NEW VA EMS PSBL WITH SUMMIT HOTSPOT OBS.
REMNANT VA EMS FM EARLIER 1100Z ERUPTION OBS IN
STLT APPROX 600NM SE FM SUMMIT. VA HGT/DIR FM
PREV VAA, STLT/NWP MDLS SHOWS CONT SE-LY MOVMT
THRU T+18. ...SAMBUCCI
NXT ADVISORY: WILL BE ISSUED BY 20210414/0515Z

Volcanic Ash Advisory issued on 2021-04-13 at 19:28 UTC.

Key information extracted from original VAA message :

Volcanic ash emission continue observation in satellite imagery.
New low level volcanic ash emission observation moving nw from summit exp continue nw-ly movement through t+6. Remant high level volcanic ash emission from earlier 11:10 UTC eruption observation 450nm ese from summit. Volcanic ash hgt/dir from nwp mlds shows ese-ly to e-ly movement trend through t+18. Sambucci.

Original Message :

Received FVXX25 at 19:34 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/1928Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/026
INFO SOURCE: GOES-16. PIARCO MWO. NWP MODELS.
VOLCAT. RADIOSONDE.
ERUPTION DETAILS: VA EMS CONT OBS IN STLT IMAGERY
OBS VA DTG: 13/1910Z
OBS VA CLD: SFC/FL085 N1405 W06058 - N1320 W06106 - N1316 W06116 - N1403 W06209 - N1405 W06058 MOV NW 5KT SFC/FL350 N1407 W06047 - N1256 W05352 - N0835 W05506 - N0839 W05806 - N1338 W06058 - N1407 W06047 MOV E 30KT
FCST VA CLD +6HR: 14/0100Z SFC/FL085 N1424 W06102 - N1322 W06105 - N1314 W06117 - N1411 W06231 - N1424 W06102 SFC/FL350 N1407 W06037 - N1305 W05104 - N0702 W05200 - N0831 W05828 - N1324 W06053 - N1407 W06037
FCST VA CLD +12HR: 14/0700Z SFC/FL085 NO VA
EXPSFC/FL350 N1359 W05930 - N1259 W04835 - N0606
W04833 - N0810 W05831 - N1243 W06020 - N1359
W05930
FCST VA CLD +18HR: 14/1300Z SFC/FL085 NO VA
EXPSFC/FL350 N1351 W05816 - N1316 W04617 - N0535
W04629 - N0755 W05838 - N1159 W05955 - N1351
W05816
RMK: NEW LOW LVL VA EMS OBS MOVG NW FM SUMMIT EXP CONT
NW-LY MOVMT THRU T+6. REMANT HIGH LVL VA EMS FM EARLIER
1100Z ERUPTION OBS 450NM ESE FM SUMMIT. VA HGT/DIR FM
NWP MLDS SHOWS ESE-LY TO E-LY MOVMT TREND THRU T+18. ...SAMBUCCI
NXT ADVISORY: WILL BE ISSUED BY 20210414/0130Z

Volcanic Ash Advisory issued on 2021-04-13 at 16:45 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash observation.
Regard remnant volcanic ash observation in satellite move primarily e and se of summit and fanning. Light volcanic ash at lower.

Original Message :

Received FVXX25 at 16:48 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/1645Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/025
INFO SOURCE: GOES-16. NWP MODELS. RADIOSONDE.
ERUPTION DETAILS: REMNANT VA OBS.
OBS VA DTG: 13/1620Z
OBS VA CLD: SFC/FL240 N1402 W06105 - N1351 W06045 - N1328 W06109 - N1402 W06105 MOV NE 15KT SFC/FL350 N1434 W05913 - N1306 W05634 - N0847 W05650 - N1014 W05920 - N1256 W06018 - N1259 W06053 - N1336 W06041 - N1434 W05913 MOV SE 25KT SFC/FL400 N1026 W04922 - N0808 W04220 - N0416 W05119 - N0826 W06033 - N1026 W04922 MOV SE 30KT
FCST VA CLD +6HR: 13/2230Z SFC/FL240 NO VA
EXP SFC/FL350 N1547 W05720 - N1156 W05119 - N0632
W05244 - N1014 W05920 - N1336 W06041 - N1547
W05720 SFC/FL400 NO VA EXP
FCST VA CLD +12HR: 14/0430Z SFC/FL350 N1422 W05515 - N1013 W04837 - N0430 W05331 - N0803 W05934 - N1301 W05906 - N1422 W05515 SFC/FL350 N1411 W05941 - N1245 W05836 - N1308 W06102 - N1317 W06109 - N1411 W05941
FCST VA CLD +18HR: 14/1030Z SFC/FL350 N1522 W05743 - N1304 W05331 - N0928 W04605 - N0311 W05156 - N0801 W05948 - N1411 W05950 - N1522 W05743
RMK: RE REMNANT VA OBS IN STLT MOV PRIMARILY E
AND SE OF SUMMIT AND FANNING. LGT VA AT LOWER FL
OBS MOV N AND NE OF SUMMIT PRIOR TO DSIPTG. LGT
REMNANT ASH FM PREV EM POSS OVER CENTRAL ATL.
...JLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210413/2245Z

Volcanic Ash Advisory issued on 2021-04-13 at 12:28 UTC.

Key information extracted from original VAA message :

New volcanic ash emission observation.
New heavy volcanic ash emission observation in satellite move ese of summit quickly in high based on volcanic ash mvmt, nwp model gdnc winds and recent activity. Volcanic ash expected to continue and move ese of summit prior to turning ene and accel. Large area of remnant volcanic ash observation to se of new emission. Jlevine.

Original Message :

Received FVXX25 at 12:30 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/1228Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/024
INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ASH3D.
SOCIAL MEDIA. SEISMIC.
ERUPTION DETAILS: NEW VA EMS OBS.
OBS VA DTG: 13/1150Z
OBS VA CLD: SFC/FL350 N1329 W06106 - N1328 W06023 - N1245 W05952 - N1234 W06038 - N1323 W06116 - N1329 W06106 MOV SE 30KT SFC/FL400 N1338 W05043 - N0928 W03858 - N0305 W04814 - N1001 W05917 - N1338 W05043 MOV SE 30KT
FCST VA CLD +6HR: 13/1800Z SFC/FL350 N1331 W06104 - N1324 W05932 - N1136 W05622 - N1010 W05928 - N1323 W06117 - N1331 W06104 SFC/FL400 N1202 W05240 - N0928 W03923 - N0305 W04831 - N1001 W05910 - N1202 W05240
FCST VA CLD +12HR: 14/0000Z SFC/FL350 N1332 W06101 - N1323 W05928 - N1221 W05659 - N1110 W05449 - N0952 W05919 - N1322 W06117 - N1332 W06101 SFC/FL400 NO VA EXP
FCST VA CLD +18HR: 14/0600Z SFC/FL350 N1344 W06048 - N1337 W05324 - N1034 W05211 - N0950 W05917 - N1323 W06115 - N1344 W06048
RMK: NEW HVY VA EMS OBS IN STLT MOV ESE OF SUMMIT
QUICKLY IN HIGH WINDS. FL BASED ON VA MVMT, NWP
MODEL GDNC WINDS AND RECENT ACTVTY. VA EXPCD TO
CONT AND MOV ESE OF SUMMIT PRIOR TO TURNING ENE
AND ACCEL. LARGE AREA OF REMNANT VA OBS TO SE OF
NEW EMS. ...JLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210413/1830Z

Volcanic Ash Advisory issued on 2021-04-13 at 06:49 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC widespread remnant volcanic ash.
Please see fvxx25 knes 130033z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 06:50 UTC, 13/04/21 from LFPW
VA ADVISORY
DTG: 20210413/0649Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/14
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z WIDESPREAD REMNANT VA
OBS VA DTG: 13/0600Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 130033 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 13/1200Z NO VA EXP
FCST VA CLD +12 HR: 13/1800Z NO VA EXP
FCST VA CLD +18 HR: 14/0000Z NO VA EXP
RMK: PLEASE SEE FVXX25 KNES 130033Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2021-04-13 at 06:23 UTC.

Key information extracted from original VAA message :

Widespread remnant volcanic ash.
Remnant volcanic ash observation up to 1000 nm e of summit. Volcanic ash forecast to move ese to se through forecast period. Volcanic ash becoming more diffuse and broken. Clark.

Original Message :

Received FVXX25 at 06:25 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/0623Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/023
INFO SOURCE: GOES-16. NWP MODELS. ASH3D.
ERUPTION DETAILS: WIDESPREAD REMNANT VA.
OBS VA DTG: 13/0600Z
OBS VA CLD: SFC/FL440 N1538 W04332 - N0853 W04534 - N0933 W05814 - N1139 W05832 - N1358 W05507 - N1538 W04332 MOV SE 35KT
FCST VA CLD +6HR: 13/1200Z SFC/FL440 N1328 W05540 - N1214 W04240 - N0612 W04419 - N0829 W05617 - N1328 W05540
FCST VA CLD +12HR: 13/1800Z SFC/FL440 N1152 W05402 - N1053 W04237 - N0437 W04332 - N0729 W05429 - N1152 W05402
FCST VA CLD +18HR: 14/0000Z SFC/FL440 N1053 W05152 - N0940 W04217 - N0446 W04255 - N0707 W05212 - N1053 W05152
RMK: REMNANT VA OBS UP TO 1000 NM E OF SUMMIT. VA
FCST TO MOV ESE TO SE THRU FCST PERIOD. VA BECMG
MORE DIFFUSE AND BKN. ...CLARK
NXT ADVISORY: WILL BE ISSUED BY 20210413/1230Z

Volcanic Ash Advisory issued on 2021-04-13 at 01:20 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC remnant volcanic ash aloft.
Please see fvxx25 knes 130033z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 01:20 UTC, 13/04/21 from LFPW
VA ADVISORY
DTG: 20210413/0120Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/13
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z REMNANT VA ALF
OBS VA DTG: 12/2340Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 130033 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 13/0540Z NOT PROVIDED
FCST VA CLD +12 HR: 13/1140Z NOT PROVIDED
FCST VA CLD +18 HR: 13/1740Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 130033Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: WILL BE ISSUED BY 20210413/0630Z=

Volcanic Ash Advisory issued on 2021-04-13 at 00:33 UTC.

Key information extracted from original VAA message :

Remnant volcanic ash aloft.
Remnant volcanic ash forecast to continue moving e to se extending to about 1050nm ese of summit before becoming too diffuse to.

Original Message :

Received FVXX25 at 00:35 UTC, 13/04/21 from KNES
VA ADVISORY
DTG: 20210413/0033Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/022
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
ERUPTION DETAILS: REMNANT VA ALF
OBS VA DTG: 12/2340Z
OBS VA CLD: SFC/FL440 N1454 W05703 - N1346 W04329 - N0747 W04523 - N0750 W05519 - N1201 W05923 - N1454 W05703 MOV E 40KT
FCST VA CLD +6HR: 13/0530Z SFC/FL440 N1443 W05449 - N1348 W04252 - N0656 W04310 - N0752 W05520 - N1443 W05449
FCST VA CLD +12HR: 13/1130Z SFC/FL440 N1414 W05124 - N1346 W04301 - N0701 W04311 - N0750 W05156 - N1414 W05124
FCST VA CLD +18HR: 13/1730Z SFC/FL440 N1346 W04259 - N0701 W04320 - N0726 W04755 - N1346 W04723 - N1346 W04259
RMK: REMNANT VA FCST TO CONT MOVG E TO SE XTNDG
TO ABT 1050NM ESE OF SUMMIT BFR BECMG TOO DFUS TO
OBS FM STLT DATA ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210413/0630Z

Volcanic Ash Advisory issued on 2021-04-12 at 21:56 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC continue volcanic ash aloft.
Please see fvxx25 knes 122052z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 21:56 UTC, 12/04/21 from LFPW
VA ADVISORY
DTG: 20210412/2156Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/12
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z CONT VA ALOFT
OBS VA DTG: 12/2040Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 122052 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 13/0240Z NOT PROVIDED
FCST VA CLD +12 HR: 13/0840Z NOT PROVIDED
FCST VA CLD +18 HR: 13/1440Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 122052Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: WILL BE ISSUED BY 20210413/0245Z=

Volcanic Ash Advisory issued on 2021-04-12 at 20:52 UTC.

Key information extracted from original VAA message :

Continue volcanic ash aloft.
Possible light emission from summit and remnant volcanic ash from earlier explosions observation on satellite. Remnant volcanic ash extending to possibly 1050nm se of summit before becoming very. Mlevine.

Original Message :

Received FVXX25 at 20:54 UTC, 12/04/21 from KNES
VA ADVISORY
DTG: 20210412/2052Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/021
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT.
ERUPTION DETAILS: CONT VA ALOFT
OBS VA DTG: 12/2040Z
OBS VA CLD: SFC/FL420 N1538 W05634 - N1332 W04315 - N0420 W04353 - N0834 W05820 - N1319 W06110 - N1538 W05634 MOV E 30KT
FCST VA CLD +6HR: 13/0230Z SFC/FL420 N1502 W05734 - N1316 W04134 - N0205 W04244 - N0814 W05834 - N1312 W06114 - N1502 W05734
FCST VA CLD +12HR: 13/0830Z SFC/FL420 N1458 W05641 - N1301 W04001 - N0048 W04010 - N0759 W05807 - N1301 W05953 - N1458 W05641
FCST VA CLD +18HR: 13/1430Z SFC/FL420 N1452 W05543 - N1241 W03802 - N0024 W03852 - N0746 W05727 - N1452 W05543
RMK: PSBL LGT EMS FM SUMMIT AND REMNANT VA FM
EARLIER EXPLOSIONS OBS ON STLT. REMNANT VA XTNDG
TO PSBLY 1050NM SE OF SUMMIT BFR BECMG VRY DFUS.
...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210413/0245Z

Volcanic Ash Advisory issued on 2021-04-12 at 20:30 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC continue volcanic ash aloft from 12/0820 emission.
Please see fvxx25 knes 121804z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 20:31 UTC, 12/04/21 from LFPW
VA ADVISORY
DTG: 20210412/2030Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/11
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z CONT VA ALOFT FM 12/0820
EMS
OBS VA DTG: 12/1740Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 121804 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/2340Z NOT PROVIDED
FCST VA CLD +12 HR: 13/0540Z NOT PROVIDED
FCST VA CLD +18 HR: 13/1140Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 121804Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: WILL BE ISSUED BY 20210413/0000Z=

Volcanic Ash Advisory issued on 2021-04-12 at 18:04 UTC.

Key information extracted from original VAA message :

Continue volcanic ash aloft from 12/0820 emission.
Continue volcanic ash aloft observation in satellite imagery move e/ese extend approx 260 nm from summit. Volcanic ash signature remains strong in rgb with diffuse nwp models suggest continue move e/ese through t+18hrs. Fisher.

Original Message :

Received FVXX25 at 18:07 UTC, 12/04/21 from KNES
VA ADVISORY
DTG: 20210412/1804Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/020
INFO SOURCE: GOES-16. NWP MODELS. VOLCAT.
ERUPTION DETAILS: CONT VA ALOFT FM 12/0820 EMS
OBS VA DTG: 12/1740Z
OBS VA CLD: SFC/FL400 N1405 W05547 - N1245 W05128 - N1024 W05145 - N0810 W05413 - N0857 W05727 - N1020 W05901 - N1258 W06025 - N1405 W05547 MOV SE 30KT
FCST VA CLD +6HR: 12/2330Z SFC/FL400 N1322 W05235 - N1235 W04851 - N0847 W04807 - N0723 W05152 - N0822 W05637 - N1121 W05754 - N1305 W05620 - N1322 W05235
FCST VA CLD +12HR: 13/0530Z SFC/FL400 N1345 W04520 - N1151 W04252 - N0720 W04159 - N0549 W04506 - N0619 W05259 - N1111 W05433 - N1342 W05018 - N1345 W04520
FCST VA CLD +18HR: 13/1130Z SFC/FL400 N1449 W04446 - N1352 W04149 - N1041 W04028 - N0646 W04031 - N0529 W04440 - N0633 W05005 - N1034 W05159 - N1446 W04847 - N1449 W04446
RMK: CONT VA ALOFT OBS IN STLT IMAGERY MOV E/ESE
EXTD APPROX 260 NM FM SUMMIT. VA SIG REMAINS
STRONG IN RGB WITH DIFFUSE EDGES. NWP MDLS
SUGGEST CONT MOV E/ESE THRU T+18HRS. ...FISHER
NXT ADVISORY: WILL BE ISSUED BY 20210413/0000Z

Volcanic Ash Advisory issued on 2021-04-12 at 15:49 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC volcano activity still ongoing.
Please see fvxx25 knes 121501z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 15:49 UTC, 12/04/21 from LFPW
VA ADVISORY
DTG: 20210412/1549Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/10
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z VO ACTIVITY STILL ONGOING
OBS VA DTG: 12/1410Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 121501 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/2010Z NOT PROVIDED
FCST VA CLD +12 HR: 13/0210Z NOT PROVIDED
FCST VA CLD +18 HR: 13/0810Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 121501Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: WILL BE ISSUED BY 20210412/2100Z=

Volcanic Ash Advisory issued on 2021-04-12 at 14:54 UTC.

Key information extracted from original VAA message :

Continue volcano activity with volcanic ash aloft.
Continue volcano activity with volcanic ash aloft move e/ese of summit at flight level 400 (12000m) extg aprox 230nm. Volcanic ash signature is strong in rgb img with diffuse nwp models forecast continue e/se mvmnt through t+18. Volcano activity high. Fisher.

Original Message :

Received FVXX25 at 15:02 UTC, 12/04/21 from KNES
VA ADVISORY
DTG: 20210412/1454Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/019
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
ERUPTION DETAILS: CONT VO ACT WITH VA ALOFT
OBS VA DTG: 12/1410Z
OBS VA CLD: SFC/FL100 N1404 W06119 - N1343 W05955 - N1317 W06005 - N1345 W06128 - N1359 W06125 - N1404 W06119 MOV NE 5KT SFC/FL400 N1337 W06105 - N1328 W05658 - N1106 W05658 - N1219 W06117 - N1337 W06105 MOV SE 30KT
FCST VA CLD +6HR: 12/2000Z SFC/FL400 N1345 W05922 - N1305 W05336 - N1016 W05448 - N1125 W05938 - N1249 W05955 - N1345 W05922
FCST VA CLD +12HR: 13/0200Z SFC/FL400 N1421 W05118 - N0926 W05136 - N1035 W05837 - N1359 W05749 - N1421 W05118
FCST VA CLD +18HR: 13/0800Z SFC/FL400 N1421 W04923 - N0918 W04925 - N1007 W05626 - N1410 W05623 - N1421 W04923
RMK: CONT VO ACT WITH VA ALOFT MOV E/ESE OF
SUMMIT AT FL400 EXTG APROX 230NM. VA SIG IS
STRONG IN RGB IMG WITH DIFFUSE EDGES. NWP MDLS
FCST CONT E/SE MVMNT THRU T+18. VO ACT HIGH.
...FISHER
NXT ADVISORY: WILL BE ISSUED BY 20210412/2100Z

Volcanic Ash Advisory issued on 2021-04-12 at 10:04 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC volcanic ash em observation 08z top of clouds flight level 420 (12600m) move ese.
Please see fvxx25 knes 120934z issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 10:04 UTC, 12/04/21 from LFPW
VA ADVISORY
DTG: 20210412/1004Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/9
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: UNKNOWN
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z VA EM OBS 08Z TOP FL420
MOV ESE
OBS VA DTG: 12/1000Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 120934 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/1600Z NOT PROVIDED
FCST VA CLD +12 HR: 12/2200Z NOT PROVIDED
FCST VA CLD +18 HR: 13/0400Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 120934Z ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: WILL BE ISSUED BY 20210412/1530Z=

Volcanic Ash Advisory issued on 2021-04-12 at 09:34 UTC.

Key information extracted from original VAA message :

New volcanic ash em to flight level 420 (12600m) move ese.
Summit area obscured by weather clouds but volcanic ash observation move wsw from summit just prior to in past 2 hours.

Original Message :

Received FVXX25 at 09:41 UTC, 12/04/21 from KNES
VA ADVISORY
DTG: 20210412/0934Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/018
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
ERUPTION DETAILS: NEW VA EM TO FL420 MOV ESE.
OBS VA DTG: 12/0910Z
OBS VA CLD: SFC/FL100 N1504 W06220 - N1334 W06053 - N1316 W06113 - N1426 W06252 - N1504 W06220 MOV NW 10KT SFC/FL400 N1719 W03821 - N1641 W03131 - N1058 W03157 - N0631 W03608 - N0530 W04339 - N0722 W05001 - N0907 W05421 - N1518 W05425 - N1719 W03821 MOV E 35KT SFC/FL420 N1518 W05425 - N0900 W05421 - N1217 W06114 - N1343 W06105 - N1518 W05425 MOV E 30KT
N1518 W05425 MOV E 30KT
FCST VA CLD +6HR: 12/1500Z SFC/FL100 N1553 W06125 - N1323 W06104 - N1315 W06120 - N1520 W06226 - N1553 W06125 SFC/FL400 N1519 W05226 - N1504 W03141 - N0431 W03417 - N0833 W05250 - N1519 W05226 SFC/FL420 N1513 W05229 - N0830 W05259 - N1228 W06110 - N1345 W06059 - N1513 W05229
N1228 W06110 - N1345 W06059 - N1513 W05229
FCST VA CLD +12HR: 12/2100Z SFC/FL100 N1559 W06050 - N1317 W06108 - N1317 W06120 - N1553 W06157 - N1559 W06050 SFC/FL400 N1516 W05026 - N1336 W03112 - N0332 W03241 - N0804 W05038 - N1516 W05026 SFC/FL420 N1507 W05032 - N0801 W05044 - N1225 W06116 - N1336 W06047 - N1507 W05032
W05032
FCST VA CLD +18HR: 13/0300Z SFC/FL100 N1601 W06043 - N1319 W06105 - N1318 W06121 - N1555 W06158 - N1601 W06043 SFC/FL400 N1429 W04834 - N1028 W03115 - N0216 W03232 - N0705 W05002 - N1429 W04834 SFC/FL420 N1423 W04840 - N0707 W05008 - N1237 W06110 - N1339 W06104 - N1423 // END PART 01 // Received FVXX24 at 07:25 UTC, 12/04/21 from KNES VA ADVISORY DTG: 20210412/0723Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT [5230 M] ADVISORY NR: 2021/363 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 12/0700Z OBS VA CLD: SFC/FL210 S0200 W07819 - S0201 W07819 - S0209 W07836 - S0204 W07838 - S0200 W07819 MOV SW 10KT
FCST VA CLD +6HR: 12/1300Z SFC/FL210 S0159 W07820 - S0200 W07819 - S0219 W07825 - S0215 W07832 - S0159 W07820
FCST VA CLD +12HR: 12/1900Z NO VA EXP
FCST VA CLD +18HR: 13/0100Z NO VA EXP
RMK: SUMMIT AREA OBSCD BY WX CLDS BUT VA OBS MOV
WSW FM SUMMIT JUST PRIOR TO OBSCN IN PAST 2 HRS.
OBS VA AREA ESTD FM THIS TIME. FL MVMT EXP TO
TURN TO SSW THRU T+6 HRS. ...CLARK
NXT ADVISORY: WILL BE ISSUED BY 20210412/1330Z

Volcanic Ash Advisory issued on 2021-04-12 at 04:51 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC continuing explosive emission.
Please see fvxx25 knes 120430 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 04:52 UTC, 12/04/21 from LFPW
VA ADVISORY
DTG: 20210412/0451Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/8
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z CONTG EXPLOSIVE EMS
OBS VA DTG: 12/0450Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 120430 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/1050Z NOT PROVIDED
FCST VA CLD +12 HR: 12/1650Z NOT PROVIDED
FCST VA CLD +18 HR: 12/2250Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 120430 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO LATER THAN 20210412/1030Z=

Volcanic Ash Advisory issued on 2021-04-12 at 04:30 UTC.

Key information extracted from original VAA message :

Continuing explosive emission.
Volcanic ash emission noted in infrared satellite imagery. Volcanic ash move in a general w direction. Web cam inop. Lee.

Original Message :

Received FVXX25 at 04:39 UTC, 12/04/21 from KNES
VA ADVISORY
DTG: 20210412/0430Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/017
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
ERUPTION DETAILS: CONTG EXPLOSIVE EMS.
OBS VA DTG: 12/0400Z
OBS VA CLD: SFC/FL100 N1423 W06235 - N1335 W06106 - N1302 W06111 - N1328 W06249 - N1423 W06235 MOV NW 5KT SFC/FL350 N1418 W05747 - N1139 W05831 - N1241 W06116 - N1358 W06102 - N1418 W05747 MOV E 30KT SFC/FL400 N2100 W02558 - N1217 W02458 - N0809 W03624 - N0844 W04711 - N1719 W04639 - N1902 W03942 - N2100 W02558 MOV E 40KT SFC/FL480 N1722 W04644 - N0838 W04717 - N1130 W05822 - N1424 W05741 - N1722 W04644 MOV E 35KT
N1424 W05741 - N1722 W04644 MOV E 35KT
FCST VA CLD +6HR: 12/1000Z SFC/FL100 N1559 W06227 - N1316 W06102 - N1307 W06122 - N1520 W06341 - N1559 W06227 SFC/FL350 N1511 W05429 - N1109 W05432 - N1241 W06110 - N1404 W06053 - N1511 W05429 SFC/FL400 N1859 W02534 - N1001 W02504 - N0833 W03246 - N0932 W04514 - N1708 W04520 - N1827 W03639 - N1859 W02534 SFC/FL480 N1708 W04529 - N0929 W04520 - N1112 W05436 - N1507 W05421 - N1708 W04529
W05421 - N1708 W04529
FCST VA CLD +12HR: 12/1600Z SFC/FL100 N1558 W06112 - N1313 W06100 - N1308 W06123 - N1550 W06249 - N1558 W06112 SFC/FL350 N1538 W05158 - N0941 W05236 - N1241 W06110 - N1352 W06059 - N1538 W05158 SFC/FL400 N1851 W02531 - N1004 W02507 - N0818 W03313 - N0917 W04508 - N1659 W04520 - N1851 W02531 SFC/FL480 N1705 W04523 - N0911 W04511 - N0932 W05229 - N1551 W05157 - N1705 W04523
N1705 W04523
FCST VA CLD +18HR: 12/2200Z SFC/FL100 N1605 W06026 - N1313 W06059 - N1307 W06119 - N1556 // END PART 01 // Received FVXX24 at 01:38 UTC, 12/04/21 from KNES VA ADVISORY DTG: 20210412/0135Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT [5230 M] ADVISORY NR: 2021/362 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 12/0110Z OBS VA CLD: SFC/FL200 S0150 W07850 - S0159 W07819 - S0203 W07820 - S0210 W07850 - S0150 W07850 MOV W 10KT
FCST VA CLD +6HR: 12/0700Z SFC/FL200 S0147 W07849 - S0158 W07819 - S0203 W07819 - S0208 W07850 - S0147 W07849
FCST VA CLD +12HR: 12/1300Z NO VA EXP
FCST VA CLD +18HR: 12/1900Z NO VA EXP
RMK: VA EMS NOTED IN IR STLT IMAGERY. VA MOV IN A
GENERAL W DIRECTION. WEB CAM INOP. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210412/0730Z

Volcanic Ash Advisory issued on 2021-04-11 at 23:25 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC ongoing explosive emission.
Please see fvxx25 knes 112250 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower case] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 23:26 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/2325Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/7
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z ONGOING EXPLOSIVE EMS
OBS VA DTG: 11/2324Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 112250 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/0524Z NOT PROVIDED
FCST VA CLD +12 HR: 12/1124Z NOT PROVIDED
FCST VA CLD +18 HR: 12/1724Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 112250 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASE]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO LATER THAN 20210412/0445Z=

Volcanic Ash Advisory issued on 2021-04-11 at 22:50 UTC.

Key information extracted from original VAA message :

Ongoing explosive emission.
Intermittent large emission continue. Furthermost volcanic ash signal extends to 2400 nm e from summit associated with initial em and mostly heavier volcanic ash concentration further w as one nears source region. Lee.

Original Message :

Received FVXX25 at 22:57 UTC, 11/04/21 from KNES
VA ADVISORY
DTG: 20210411/2250Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/016
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT.
VOLCAT. RADIOSONDE. SOCIAL MEDIA.
ERUPTION DETAILS: ONGOING EXPLOSIVE EMS.
OBS VA DTG: 11/2230Z
OBS VA CLD: SFC/FL100 N1439 W06105 - N1306 W06113 - N1143 W06053 - N1140 W06241 - N1403 W06231 - N1439 W06105 MOV W 5KT SFC/FL400 N2240 W03041 - N2117 W02418 - N1711 W02510 - N1033 W03720 - N0934 W04406 - N1255 W04605 - N1602 W04927 - N2059 W03743 - N2240 W03041 MOV E 30KT SFC/FL400 N1444 W01857 - N1015 W01826 - N0957 W02559 - N1250 W02541 - N1444 W01857 MOV SE 35KT SFC/FL480 N1556 W04927 - N1258 W04605 - N0934 W04411 - N0740 W04843 - N0847 W05432 - N1146 W06053 - N1324 W06105 - N1444 W06103 - N1556 W04927 MOV E 35 KT
FCST VA CLD +6HR: 12/0430Z SFC/FL100 N1507 W06045 - N1301 W06111 - N1204 W06236 - N1434 W06307 - N1507 W06045 SFC/FL400 N2149 W03054 - N2000 W02538 - N1340 W02546 - N0844 W04434 - N1201 W04447 - N1617 W04851 - N1950 W04029 - N2149 W03054 SFC/FL480 N1615 W04851 - N1159 W04447 - N0844 W04437 - N0653 W04940 - N0847 W05506 - N1143 W06047 - N1306 W06105 - N1502 W06045 - N1615 W04851
FCST VA CLD +12HR: 12/1030Z SFC/FL100 N1556 W06029 - N1258 W06105 - N1245 W06338 - N1518 W06315 - N1556 W06029 SFC/FL400 N2105 W02439 - N1308 W02510 - N1146 W04649 - N1641 W04749 - N2105 W02439 SFC/FL480 N1635 W04751 - N1151 W04652 - N0716 W05026 - N1054 W05938 - N1159 W06047 - N1253 W06108 - N1322 W06105 - N1500 W06032 - N1635 W04751
FCST VA CLD +18HR: 12/1630Z SFC/FL100 N1612 W06252 -N1556 W06004 - N1253 W06119 - N1439 W06333 -N1612 W06252 SFC/FL400 N2059 W02340 - N1041 W02355 - N1015 W04649 - N1623 W04846 - N2059 W02340 SFC/FL480 N1623 W04848 - N1023 W04649 - N0743 W05019 - N1025 W05953 - N1250 W06113 - N1324 W06105 - N1426 W06040 - N1623 W04848
RMK: INTERMITTENT LARGE EMS CONT. FURTHERMOST VA
SIGNAL EXTENDS TO 2400 NM E FM SUMMIT ASSOCIATED
WITH INITIAL EM AND MOSTLY GASES. HEAVIER VA
CONCENTRATION FURTHER W AS ONE NEARS SOURCE
REGION. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210412/0445Z

Volcanic Ash Advisory issued on 2021-04-11 at 18:20 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC frequent explosive eruptions.
Please see fvxx25 knes 111753 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower cases] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 18:20 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/1820Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/6
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z FRQ EXPLOSIVE ERUPTIONS
OBS VA DTG: 11/1810Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 111753 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 12/0010Z NOT PROVIDED
FCST VA CLD +12 HR: 12/0610Z NOT PROVIDED
FCST VA CLD +18 HR: 12/1210Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 111753 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASES]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO LATER THAN 20210412/0000Z=

Volcanic Ash Advisory issued on 2021-04-11 at 17:53 UTC.

Key information extracted from original VAA message :

Ongoing explosive emission.
Very large periodic emission continue. Emission lofted to perhaps flight level 520 (15600m) and carried ene through ese to around 2000 nm e of summit. Volcanic ash becomes more diffuse further e vaag area. Vaag assumes continue //end part 01//.

Original Message :

Received FVXX25 at 18:02 UTC, 11/04/21 from KNES
VA ADVISORY
DTG: 20210411/1753Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/015
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT. RADIOSONDE.
ERUPTION DETAILS: ONGOING EXPLOSIVE EMS.
OBS VA DTG: 11/1710Z
OBS VA CLD: SFC/FL400 N2320 W03310 - N1913 W02634 - N1323 W02747 - N0923 W03549 - N0908 W04247 - N1331 W04526 - N1502 W05204 - N1620 W05204 - N2320 W03310 MOV E 30KT SFC/FL520 N1618 W05211 - N1507 W05209 - N1331 W04524 - N0916 W04242 - N0911 W05349 - N1134 W06014 - N1254 W06122 - N1343 W06103 - N1522 W05837 - N1618 W05211 MOV E 35KT
35KT
FCST VA CLD +6HR: 11/2300Z SFC/FL400 N2133 W02637 - N1043 W02904 - N0931 W04227 - N1558 W05044 - N1649 W05035 - N2133 W02637 SFC/FL520 N1649 W05040 - N1558 W05047 - N0933 W04234 - N0901 W05437 - N1242 W06117 - N1335 W06108 - N1534 W05753 - N1649 W05040
W05753 - N1649 W05040
FCST VA CLD +12HR: 12/0500Z SFC/FL400 N2104 W02656 - N1038 W02615 - N1320 W04958 - N1642 W05005 - N2104 W02656 SFC/FL520 N1647 W05010 - N1323 W05001 - N1156 W03801 - N0908 W04144 - N0842 W05408 - N1237 W06122 - N1328 W06110 - N1502 W05844 - N1647 W05010
N1502 W05844 - N1647 W05010
FCST VA CLD +18HR: 12/1100Z SFC/FL400 N2133 W02705 - N1014 W02703 - N1127 W04637 - N1132 W04704 - N1659 W04836 - N2133 W02705 SFC/FL520 N1701 W04834 - N1132 W04701 - N1034 W03209 - N0920 W03628 - N0852 W05423 - N1242 W06120 - N1331 W06113 - N1527 W05837 - N1701 W04834
N1331 W06113 - N1527 W05837 - N1701 W04834
RMK: VERY LARGE PERIODIC EMS CONT. EMS LOFTED TO
PERHAPS FL520 AND CARRIED ENE THRU ESE TO AROUND
2000 NM E OF SUMMIT. VA BECOMES MORE DIFFUSE
FURTHER E WITHIN VAAG AREA. VAAG ASSUMES CONT
//END PART 01//

Volcanic Ash Advisory issued on 2021-04-11 at 12:55 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC frequent explosive eruptions.
Please see fvxx25 knes 111230 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower cases] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 12:55 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/1255Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/5
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z FRQ EXPLOSIVE ERUPTIONS
OBS VA DTG: 11/1200Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 111230 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 11/1800Z NOT PROVIDED
FCST VA CLD +12 HR: 12/0000Z NOT PROVIDED
FCST VA CLD +18 HR: 12/0600Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 111230 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASES]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO LATER THAN 20210411/1830Z=

Volcanic Ash Advisory issued on 2021-04-11 at 12:30 UTC.

Key information extracted from original VAA message :

Frequent explosive eruptions.
Several explosive eruptions over the past 6 hours. Volcanic ash becoming diffuse at about 1200nm from summit. Lower winds have more northern component while higher winds have more southern component. Forecast and from hysplit and nwp. Mlevine.

Original Message :

Received FVXX25 at 12:33 UTC, 11/04/21 from KNES
VA ADVISORY
DTG: 20210411/1230Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/014
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT.
ERUPTION DETAILS: FRQ EXPLOSIVE ERUPTIONS
OBS VA DTG: 11/1140Z
OBS VA CLD: SFC/FL400 N1814 W02815 - N1007 W02923 - N1349 W06118 - N1628 W05334 - N1814 W02815 MOV SE 30KT SFC/FL520 N1352 W06110 - N1109 W03908 - N0656 W04022 - N1314 W06113 - N1352 W06110 MOV SE 25KT
FCST VA CLD +6HR: 11/1730Z SFC/FL400 N1840 W02658 - N0926 W02735 - N1352 W06113 - N1623 W05641 - N1840 W02658 SFC/FL520 N1346 W06113 - N1041 W03525 - N0556 W03753 - N0958 W05608 - N1306 W06115 - N1346 W06113
FCST VA CLD +12HR: 11/2330Z SFC/FL400 N1831 W02616 - N0913 W02532 - N1332 W06110 - N1643 W05431 - N1831 W02616 SFC/FL520 N1303 W06113 - N1032 W03317 - N0425 W03708 - N0838 W05804 - N1303 W06113
FCST VA CLD +18HR: 12/0530Z SFC/FL400 N1831 W02604 - N0855 W02453 - N1340 W06115 - N1648 W05408 - N1831 W02604 SFC/FL520 N1303 W06115 - N1023 W03103 - N0308 W03446 - N0801 W05738 - N1303 W06115
RMK: SVRL EXPLOSIVE ERUPTIONS OVR THE PAST 6 HRS.
VA BECOMING DIFFUSE AT ABT 1200NM FM SUMMIT. LWR
FL WINDS HAVE MORE NRN COMPONENT WHILE HIER FL
WINDS HAVE MORE SRN COMPONENT. FCST AND FL FM
HYSPLIT AND NWP ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210411/1830Z

Volcanic Ash Advisory issued on 2021-04-11 at 07:22 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC frqt explosive eruptions.
Please see fvxx25 knes 110658 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsibility. All products are available at [lower cases] https://www. Ssd. Noaa. Gov/vaac/messages. Html.

Original Message :

Received FVXX01 at 07:22 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/0722Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/4
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z FRQT EXPLOSIVE ERUPTIONS
OBS VA DTG: 11/0600Z
OBS VA CLD: PLEASE SEE FVXX25 KNES 110658 ISSUED BY VAAC WASHINGTON
FCST VA CLD +6 HR: 11/1200Z NOT PROVIDED
FCST VA CLD +12 HR: 11/1800Z NOT PROVIDED
FCST VA CLD +18 HR: 12/0000Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 110658 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSIBILITY. ALL PRODUCTS ARE AVAILABLE AT [LOWER CASES]
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML
NXT ADVISORY: NO LATER THAN 20210411/1300Z=

Volcanic Ash Advisory issued on 2021-04-11 at 06:58 UTC.

Key information extracted from original VAA message :

Frqt explosive eruptions.
Numerous explosive eruptions seen over the // end part 01 //.

Original Message :

Received FVXX25 at 07:06 UTC, 11/04/21 from KNES
VA ADVISORY
DTG: 20210411/0658Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/013
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT.
ERUPTION DETAILS: FRQT EXPLOSIVE ERUPTIONS.
OBS VA DTG: 11/0610Z
OBS VA CLD: SFC/FL400 N1849 W03025 - N0813 W04105 - N1034 W05106 - N1849 W04753 - N1849 W03025 MOV SE 40KT SFC/FL470 N1853 W04758 - N1026 W05110 - N1022 W05537 - N1255 W06059 - N1414 W06107 - N1853 W04758 MOV E 30KT SFC/FL520 N1326 W05913 - N1133 W05636 - N1129 W06004 - N1311 W06122 - N1326 W05913 MOV SE 20KT
N1326 W05913 MOV SE 20KT
FCST VA CLD +6HR: 11/1200Z SFC/FL400 N2015 W03705 - N1710 W02705 - N0714 W03500 - N1010 W05003 - N1901 W04627 - N2015 W03705 SFC/FL470 N1904 W04639 - N1007 W04959 - N0950 W05426 - N1255 W06122 - N1358 W06114 - N1904 W04639 SFC/FL520 N1331 W05802 - N1053 W05505 - N1041 W05913 - N1315 W06119 - N1331 W05802
N1315 W06119 - N1331 W05802
FCST VA CLD +12HR: 11/1800Z SFC/FL400 N1856 W04449 - N1837 W03504 - N1354 W02507 - N0733 W02819 - N0947 W04722 - N1856 W04449 SFC/FL470 N1849 W04501 - N0927 W04722 - N0927 W05145 - N1235 W06107 - N1422 W06114 - N1849 W04501 SFC/FL520 N1331 W05755 - N1038 W05453 - N1022 W05909 - N1311 W06119 - N1331 W05755
W05909 - N1311 W06119 - N1331 W05755
FCST VA CLD +18HR: 12/0000Z SFC/FL400 N1936 W04216 - N1718 W03033 - N1251 W02230 - N0733 W02811 - N0904 W04532 - N1936 W04216 SFC/FL470 N1940 W04212 - N0859 W04544 - N0919 W05335 - N1315 W06122 - N1417 W06111 - N1940 W04212 SFC/FL520 N1338 W05719 - N0919 W05232 - N0931 W05802 - N1303 W06119 - N1338 W05719
W05802 - N1303 W06119 - N1338 W05719
RMK: NUMEROUS EXPLOSIVE ERUPTIONS SEEN OVR THE
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-11 at 01:58 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC volcanic ash advisory center washington.
Amendment please see fvxx25 knes 110059 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsability. All product are available : https://www. Ssd. Noaa. Gov/vaac/messages. Html#souf.

Original Message :

Received FVXX01 at 02:00 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/0158Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/3
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z VAAC WASHINGTON
OBS VA DTG: 11/0030Z
OBS VA CLD: PLEASE SEE : FVXX25 KNES 110059 ISSUED BY VAAC WASHINGTON
WASHINGTON
FCST VA CLD +6 HR: 11/0630Z NOT PROVIDED
FCST VA CLD +12 HR: 11/1230Z NOT PROVIDED
FCST VA CLD +18 HR: 11/1830Z NOT PROVIDED
RMK: AMENDMENT PLEASE SEE FVXX25 KNES 110059 ISSUED BY VAAC
WASHINGTON WHICH DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE
AREA OF RESPONSABILITY. ALL PRODUCT ARE AVAILABLE :
HTTPS://WWW.SSD.NOAA.GOV/VAAC/MESSAGES.HTML#SOUF
NXT ADVISORY: NO LATER THAN 20210411/0700Z=

Volcanic Ash Advisory issued on 2021-04-11 at 01:35 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC volcanic ash advisory center washington.
Please see fvxx25 knes 110059 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsability. All product are available : https://www. Ssd. Noaa. Gov/vaac/messages. Html#souf.

Original Message :

Received FVXX01 at 01:36 UTC, 11/04/21 from LFPW
VA ADVISORY
DTG: 20210411/0135Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/2
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z VAAC WASHINGTON
OBS VA DTG: 10/0030Z
OBS VA CLD: PLEASE SEE : FVXX25 KNES 110059 ISSUED BY VAAC WASHINGTON
WASHINGTON
FCST VA CLD +6 HR: 10/0630Z NOT PROVIDED
FCST VA CLD +12 HR: 10/1230Z NOT PROVIDED
FCST VA CLD +18 HR: 10/1830Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 110059 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSABILITY. ALL PRODUCT ARE AVAILABLE : HTTPS://WWW.SSD.NOAA
.GOV/VAAC/MESSAGES.HTML#SOUF
NXT ADVISORY: NO LATER THAN 20210411/0700Z=

Volcanic Ash Advisory issued on 2021-04-11 at 00:59 UTC.

Key information extracted from original VAA message :

Ongoing explosive emission.
Web cam shows volcanic ash emission fumigating around summit and just to south under light nothing seen in satellite imagery due to weather wind conditions forecast to light. Lee.

Original Message :

Received FVXX25 at 01:12 UTC, 11/04/21 from KNES
VA ADVISORY
DTG: 20210411/0059Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/012
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
SOCIAL MEDIA.
ERUPTION DETAILS: ONGOING EXPLOSIVE EMS.
OBS VA DTG: 11/0030Z
OBS VA CLD: SFC/FL400 N2108 W03859 - N2047 W03224 - N1743 W03149 - N1435 W03343 - N1439 W03848 - N1153 W04531 - N1437 W04839 - N1222 W05400 - N1553 W05538 - N1700 W05240 - N2108 W03859 MOV E 35KT SFC/FL470 N1555 W05532 - N1224 W05400 - N1433 W04835 - N1149 W04529 - N1017 W04657 - N0657 W05040 - N0622 W05358 - N1110 W05743 - N1535 W05838 - N1555 W05532 MOV SE 35KT SFC/FL520 N1546 W05855 - N1052 W05743 - N1303 W06113 - N1328 W06118 - N1546 W05855 MOV E 45KT
N1328 W06118 - N1546 W05855 MOV E 45KT
FCST VA CLD +6HR: 11/0630Z SFC/FL400 N2152 W03317 - N1717 W03143 - N1458 W03428 - N1234 W04409 - N1340 W04641 - N1307 W05331 - N1611 W05419 - N1948 W04420 - N2152 W03317 SFC/FL470 N1609 W05422 - N1309 W05328 - N1344 W04643 - N1234 W04409 - N1342 W03911 - N1246 W04045 - N0556 W05241 - N1014 W05727 - N1538 W05844 - N1609 W05422 SFC/FL520 N1553 W05852 - N1034 W05733 - N1303 W06118 - N1331 W06116 - N1553 W05852
N1303 W06118 - N1331 W06116 - N1553 W05852
FCST VA CLD +12HR: 11/1230Z SFC/FL400 N2045 W04051 - N2011 W03205 - N1317 W03343 - N1234 W04355 - N1240 W05232 - N1637 W05404 - N2045 W04051 SFC/FL470 N1632 W05404 - N1235 W05234 - N1247 W03913 - N0602 W05346 - N1040 W05735 - N1553 W05853 - N1632 W05404 SFC/FL520 N1549 W05855 - N1038 W05739 - N1259 W06116 - N1344 W06122 - N1549 W05855
W06122 - N1549 W05855
FCST VA CLD +18HR: 11/1830Z SFC/FL400 N1901 W03929 - N1753 W03122 - N1208 W03338 - N1218 // END PART 01 // Received FVXX21 at 23:02 UTC, 10/04/21 from KNES VA ADVISORY DTG: 20210410/2258Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT [5426 M] ADVISORY NR: 2021/348 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: NEW VA EMS. OBS VA DTG: 10/2230Z OBS VA CLD: SFC/FL185 N1906 W09840 - N1905 W09834 - N1856 W09831 - N1856 W09840 - N1906 W09840 MOV S 5KT
FCST VA CLD +6HR: 11/0430Z SFC/FL185 N1905 W09835 - N1856 W09831 - N1854 W09839 - N1905 W09841 - N1905 W09835
FCST VA CLD +12HR: 11/1030Z SFC/FL185 N1906 W09832 - N1855 W09831 - N1855 W09840 - N1905 W09840 - N1906 W09832
FCST VA CLD +18HR: 11/1630Z SFC/FL185 N1905 W09840 - N1904 W09834 - N1855 W09831 - N1855 W09839 - N1905 W09840
RMK: WEB CAM SHOWS VA EMS FUMIGATING AROUND
SUMMIT AND JUST TO S UNDER LIGHT WINDS. NOTHING
SEEN IN STLT IMAGERY DUE TO WX CLDS. WIND
CONDITIONS FCST TO REMAIN LIGHT. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210411/0500Z

Volcanic Ash Advisory issued on 2021-04-10 at 20:55 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Eruption at 2021-04-09 19:00 UTC volcanic ash advisory center washington.
Please see fvxx25 knes 101957 issued by volcanic ash advisory center washington which describes conditions over or near the volcanic ash advisory center toulouse area of responsability. All product are available : https://www. Ssd. Noaa. Gov/vaac/messages. Html#souf.

Original Message :

Received FVXX01 at 20:57 UTC, 10/04/21 from LFPW
VA ADVISORY
DTG: 20210410/2055Z
VAAC: TOULOUSE
VOLCANO: SOUFRIERE ST. VINCENT 360150
PSN: N1319 W06110
AREA: WEST INDIES
SUMMIT ELEV: 1220M
ADVISORY NR: 2021/1
INFO SOURCE: VAAC WASHINGTON
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210409/1900Z VAAC WASHINGTON
OBS VA DTG: 10/1930Z
OBS VA CLD: PLEASE SEE : FVXX25 KNES 101957 ISSUED BY VAAC WASHINGTON
WASHINGTON
FCST VA CLD +6 HR: 11/0130Z NOT PROVIDED
FCST VA CLD +12 HR: 11/0730Z NOT PROVIDED
FCST VA CLD +18 HR: 11/1330Z NOT PROVIDED
RMK: PLEASE SEE FVXX25 KNES 101957 ISSUED BY VAAC WASHINGTON WHICH
DESCRIBES CONDITIONS OVER OR NEAR THE VAAC TOULOUSE AREA OF
RESPONSABILITY. ALL PRODUCT ARE AVAILABLE : HTTPS://WWW.SSD.NOAA
.GOV/VAAC/MESSAGES.HTML#SOUF
NXT ADVISORY: NO LATER THAN 20210411/0200Z=

Volcanic Ash Advisory issued on 2021-04-10 at 19:57 UTC.

Key information extracted from original VAA message :

Ongoing explosive emission.
Volcanic ash from earlier emission dispersed. No new emission noted in mostly clear skies in satellite imagery. Some steam and gases noted in web cam. No new reports. Lee.

Original Message :

Received FVXX25 at 20:02 UTC, 10/04/21 from KNES
VA ADVISORY
DTG: 20210410/1957Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/011
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT. RADIOSONDE.
ERUPTION DETAILS: ONGOING EXPLOSIVE EMS.
OBS VA DTG: 10/1930Z
OBS VA CLD: SFC/FL380 N2011 W03904 - N1640 W03735 - N1458 W04235 - N1334 W05315 - N1140 W05559 - N1453 W05744 - N1721 W05314 - N2011 W03904 MOV E 30KT SFC/FL460 N1458 W05743 - N1142 W05556 - N1331 W05316 - N1408 W04804 - N0642 W05049 - N1037 W05820 - N1427 W05914 - N1458 W05743 MOV SE 35KT SFC/FL520 N1425 W05916 - N1058 W05823 - N1301 W06129 - N1331 W06122 - N1425 W05916 MOV E 45KT
FCST VA CLD +6HR: 11/0130Z SFC/FL380 N1831 W04544 - N1820 W03243 - N1240 W03336 - N1416 W04528 - N1308 W05355 - N1518 W05538 - N1831 W04544 SFC/FL460 N1514 W05538 - N1304 W05350 - N1420 W04540 - N0455 W04755 - N1030 W05652 - N1404 W05834 - N1514 W05538 SFC/FL520 N1434 W05900 - N1408 W05834 - N1025 W05656 - N1044 W05853 - N1324 W06143 - N1434 W05900
FCST VA CLD +12HR: 11/0730Z SFC/FL380 N1714 W03411 - N1102 W03301 - N1228 W05325 - N1544 W05411 - N1710 W04601 - N1714 W03411 SFC/FL460 N1537 W05414 - N1226 W05318 - N1147 W04352 - N0438 W04444 - N0948 W05823 - N1416 W05832 - N1537 W05414 SFC/FL520 N1416 W05832 - N0955 W05825 - N1247 W06122 - N1341 W06136 - N1416 W05832
FCST VA CLD +18HR: 11/1330Z SFC/FL380 N1729 W04546 - N1546 W03228 - N1002 W03345 - N1243 W04126 - N1231 W05318 - N1614 W05355 - N1729 W04546 SFC/FL460 N1602 W05350 - N1235 W05323 - N1238 W04119 - N0450 W04133 - N0959 W05809 - N1425 W05823 - N1602 W05350 SFC/FL520 N1427 W05828 - N1002 W05809 - N1254 W06120 - N1341 W06126 - N1427 W05828 //END PART 01// Received FVXX21 at 19:25 UTC, 10/04/21 from KNES VA ADVISORY DTG: 20210410/1922Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT [5426 M] ADVISORY NR: 2021/347 INFO SOURCE: GOES-16. WEBCAM. ERUPTION DETAILS: VA EMS ENDED. OBS VA DTG: 10/1850Z OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA.
FCST VA CLD +6HR: 11/0100Z NO VA EXP
FCST VA CLD +12HR: 11/0700Z NO VA EXP
FCST VA CLD +18HR: 11/1300Z NO VA EXP
RMK: VA FM EARLIER EMS DISPERSED. NO NEW EMS
NOTED IN MOSTLY CLEAR SKIES IN STLT IMAGERY. SOME
STEAM AND GASES NOTED IN WEB CAM. NO NEW REPORTS.
...LEE
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2021-04-10 at 15:55 UTC.

Key information extracted from original VAA message :

Continuing explosive eruption.
Volcanic ash reaching over 1000nm ene of summit. Main plume at flight level 350 (10500m) with highest tops at flight level 500 (15000m) moving ese with residual volcanic ash reaching 650nm. And winds from hysplit and nwp. Mlevine.

Original Message :

Received FVXX25 at 15:59 UTC, 10/04/21 from KNES
VA ADVISORY
DTG: 20210410/1555Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/010
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT.
ERUPTION DETAILS: CONTG EXPLOSIVE ERUPTION
OBS VA DTG: 10/1530Z
OBS VA CLD: SFC/FL350 N1656 W04404 - N1526 W04331 - N1314 W06112 - N1330 W06116 - N1429 W06126 - N1656 W04404 MOV E 40KT SFC/FL500 N1355 W05009 - N1031 W05007 - N1159 W06112 - N1338 W06116 - N1355 W05009 MOV SE 30KT
FCST VA CLD +6HR: 10/2130Z SFC/FL350 N1738 W03952 - N1529 W03918 - N1325 W06111 - N1427 W06126 - N1738 W03952 SFC/FL500 N1453 W04400 - N1042 W04407 - N1157 W06055 - N1338 W06116 - N1453 W04400
FCST VA CLD +12HR: 11/0330Z SFC/FL350 N1759 W03759 - N1422 W03801 - N1308 W06117 - N1434 W06126 - N1759 W03759 SFC/FL500 N1418 W04001 - N0945 W03955 - N1122 W05526 - N1340 W05507 - N1418 W04001
FCST VA CLD +18HR: 11/0930Z SFC/FL350 N1443 W05249 - N1303 W04001 - N0917 W04002 - N1127 W05256 - N1443 W05249 SFC/FL500 NO VA EXP
RMK: VA RCHG OVER 1000NM ENE OF SUMMIT. MAIN
PLUME AT FL350 WITH HIGHEST TOPS AT FL500 MOVG
ESE WITH RESIDUAL VA RCHG 650NM. FL AND WINDS FM
HYSPLIT AND NWP ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210410/2200Z

Volcanic Ash Advisory issued on 2021-04-10 at 11:13 UTC.

Key information extracted from original VAA message :

Continuing explosive eruption.
Volcanic ash reaching over 700 nmi ene from summit. Main plume at flight level 470 (14100m) moving ene with the highest tops to flight level 520 (15600m) moving ese. Ashfall north and north east of summit seen // end part 01 //.

Original Message :

Received FVXX25 at 11:21 UTC, 10/04/21 from KNES
VA ADVISORY
DTG: 20210410/1113Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/009
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
ERUPTION DETAILS: CONTG EXPLOSIVE ERUPTION.
OBS VA DTG: 10/0940Z
OBS VA CLD: SFC/FL080 N1450 W05846 - N1414 W05939 - N1335 W06119 - N1416 W06141 - N1450 W05846 MOV E 10KT SFC/FL470 N1838 W04758 - N1409 W05401 - N1204 W06103 - N1335 W06117 - N1456 W05822 - N1838 W04758 MOV E 35KT SFC/FL520 N1447 W05710 - N1204 W05419 - N0927 W05616 - N1317 W06109 - N1407 W05932 - N1447 W05710 MOV SE 35KT
N1407 W05932 - N1447 W05710 MOV SE 35KT
FCST VA CLD +6HR: 10/1530Z SFC/FL080 N1447 W05847 - N1337 W06105 - N1317 W06208 - N1424 W06220 - N1447 W05847 SFC/FL470 N1801 W04926 - N1722 W04108 - N1340 W04914 - N1328 W06121 - N1443 W05736 - N1801 W04926 SFC/FL520 N1503 W05553 - N1138 W05037 - N0844 W05450 - N1325 W06113 - N1503 W05553
N1503 W05553
FCST VA CLD +12HR: 10/2130Z SFC/FL080 NO VA
EXP SFC/FL470 N1618 W03846 - N1043 W03855 - N1237
W05232 - N1332 W06117 - N1523 W05414 - N1618
W03846 SFC/FL520 N1459 W05057 - N0836 W04315 -
N0725 W05132 - N1325 W06030 - N1459 W05057
FCST VA CLD +18HR: 11/0330Z SFC/FL470 N1503 W05541 - N1205 W03811 - N0622 W03958 - N1229 W05644 - N1503 W05541 SFC/FL520 NO VA EXP
W05644 - N1503 W05541 SFC/FL520 NO VA EXP
RMK: VA REACHING OVER 700 NMI ENE FM SUMMIT. MAIN
PLUME AT FL470 MOVG ENE WITH THE HIGHEST TOPS TO
FL520 MOVG ESE. ASHFALL N AND NE OF SUMMIT SEEN
// END PART 01 //

Volcanic Ash Advisory issued on 2021-04-10 at 05:43 UTC.

Key information extracted from original VAA message :

Continuing major eruption.
Volcanic ash extends nearly 400 nmi ene from summit and about 350 nmi ese from summit. Nwp models and se volcanic ash movement suggest volcanic ash to higher than prev advisory. Forecast based on nwp mdls, hysplit and ash3d. Hosley.

Original Message :

Received FVXX25 at 05:46 UTC, 10/04/21 from KNES
VA ADVISORY
DTG: 20210410/0543Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W.INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/008
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
ERUPTION DETAILS: CONTG MAJOR ERUPTION.
OBS VA DTG: 10/0500Z
OBS VA CLD: SFC/FL060 N1322 W06110 - N1314 W06112 - N1302 W06155 - N1320 W06156 - N1322 W06110 MOV W 5KT SFC/FL430 N1629 W05517 - N1435 W05450 - N1259 W06107 - N1406 W06124 - N1629 W05517 MOV E 45KT SFC/FL550 N1413 W06007 - N1141 W05507 - N1028 W05536 - N1223 W06105 - N1322 W06113 - N1413 W06007 MOV SE 35KT
FCST VA CLD +6HR: 10/1100Z SFC/FL060 N1320 W06110 - N1313 W06108 - N1242 W06231 - N1314 W06236 - N1320 W06110 SFC/FL430 N1729 W05134 - N1335 W05104 - N1257 W06113 - N1328 W06113 - N1422 W06055 - N1729 W05134 SFC/FL550 N1544 W05426 - N0952 W04955 - N0848 W05528 - N1310 W06113 - N1346 W06115 - N1544 W05426
FCST VA CLD +12HR: 10/1700Z SFC/FL060 NO VA
EXP SFC/FL430 N1750 W04658 - N1322 W04834 - N1325
W06112 - N1539 W05849 - N1750 W04658 SFC/FL550 NO
VA EXP
FCST VA CLD +18HR: 10/2300Z SFC/FL430 N1826 W04214 - N1313 W04340 - N1308 W05914 - N1610 W05729 - N1826 W04214
RMK: VA EXTDS NEARLY 400 NMI ENE FM SUMMIT AND
ABT 350 NMI ESE FM SUMMIT. NWP MDLS AND SE VA
MOVMT SUGGEST VA TO HIGHER THAN PREV ADVY. FCSTS
BASED ON NWP MDLS, HYSPLIT AND ASH3D. ...HOSLEY
NXT ADVISORY: WILL BE ISSUED BY 20210410/1145Z

Volcanic Ash Advisory issued on 2021-04-09 at 23:46 UTC.

Key information extracted from original VAA message :

Continue explosive eruption.
Ongoing violent volcanic ash emission due to multiple explosive eruptions. Multiple t near summit to tropopause. Elsewhere se to flight level 220 (6600m) and further e to flight level 420 (12600m) vaa updated accordingly to reflect ongoing event. Lee.

Original Message :

Received FVXX25 at 23:51 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/2346Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/007
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
RADIOSONDE. SOCIAL MEDIA.
ERUPTION DETAILS: CONT EXPLOSIVE ERUPTION
OBS VA DTG: 09/2320Z
OBS VA CLD: SFC/FL220 N1326 W05820 - N1215 W05842 - N1226 W05946 - N1301 W06100 - N1315 W06104 - N1314 W06106 - N1304 W06043 - N1326 W05937 - N1326 W05820 MOV SE 30KT SFC/FL420 N1459 W05807 - N1329 W05826 - N1329 W05936 - N1323 W05953 - N1407 W06026 - N1407 W06026 - N1456 W05947 - N1459 W05807 MOV E 35KT SFC/FL500 N1408 W06026 - N1323 W05952 - N1307 W06044 - N1316 W06109 - N1323 W06111 - N1408 W06026 MOV E 40KT
FCST VA CLD +6HR: 10/0530Z SFC/FL420 N1511 W05550 - N1332 W05553 - N1334 W05805 - N1502 W05741 - N1511 W05550 SFC/FL500 N1443 W05654 - N1314 W05723 - N1315 W05928 - N1422 W05853 - N1435 W05835 - N1443 W05654
FCST VA CLD +12HR: 10/1130Z SFC/FL500 N1444 W05258 - N1245 W05332 - N1315 W05537 - N1439 W05504 - N1444 W05258
FCST VA CLD +18HR: 10/1730Z NO VA EXP
RMK: ONGOING VIOLENT VA EMS DUE TO MULTIPLE
EXPLOSIVE ERUPTIONS. MULTIPLE FLT LVLS. NEAR
SUMMIT REGION TO TROP. ELSEWHERE SE TO FL220
AND FURTHER E TO FL420. VAA UPDATED ACCORDINGLY
TO REFLECT ONGOING EVENT. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210410/0545Z

Volcanic Ash Advisory issued on 2021-04-09 at 21:08 UTC.

Key information extracted from original VAA message :

New explosive em plus remnant volcanic ash.
New em showing cloud top of clouds temps at minus 78c, which conveys height of 52kft. Numerous lightning strikes in volc cb. Volcanic ash move off to e. Remnant volcanic ash from earlier emission dispersing w/i 6 hours. Lee.

Original Message :

Received FVXX25 at 21:11 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/2108Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/006
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. PILOT
RPRT. UWI SEISMIC RESEARCH CENTRE.
ERUPTION DETAILS: NEW EXPLOSIVE EM PLUS REMNANT
VA.
OBS VA DTG: 09/2020Z
OBS VA CLD: SFC/FL200 N1316 W05952 - N1238 W05939 - N1219 W06024 - N1228 W06114 - N1255 W06106 - N1245 W06036 - N1316 W05952 MOV SE 10KT SFC/FL400 N1413 W05805 - N1340 W05756 - N1322 W05932 - N1342 W05934 - N1413 W05805 MOV E 35KT SFC/FL520 N1358 W06007 - N1303 W06020 - N1319 W06109 - N1323 W06110 - N1332 W06104 - N1358 W06007 MOV E 40KT
FCST VA CLD +6HR: 10/0230Z SFC/FL520 N1413 W05819 - N1331 W05803 - N1315 W05928 - N1355 W05928 - N1413 W05819
FCST VA CLD +12HR: 10/0830Z SFC/FL520 N1426 W05532 - N1331 W05529 - N1337 W05703 - N1410 W05702 - N1426 W05532
FCST VA CLD +18HR: 10/1430Z NO VA EXP
RMK: NEW EM SHOWING CLOUD TOP TEMPS AT MINUS 78C,
WHICH CONVEYS HEIGHT OF 52KFT. NUMEROUS LIGHTNING
STRIKES IN VOLC CB. VA MOV OFF TO E. REMNANT VA
FM EARLIER EMS DISPERSING W/I 6 HRS. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210410/0315Z

Volcanic Ash Advisory issued on 2021-04-09 at 18:11 UTC.

Key information extracted from original VAA message :

Possible ongoing em. Remnant volcanic ash.
Dense high weather clouds have obstructed view of summit but ongoing emission likely. Remnant volcanic ash move wnw to flight level 110 (3300m) and e to ene of summit to flight level 400 (12000m) vaa will likely be updated freq to account for change in activity and volcanic ash move. Lee.

Original Message :

Received FVXX25 at 18:22 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/1811Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/005
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. ASH3D.
VOLCAT. UWI SEISMIC RESEARCH CENTRE. SOCIAL
MEDIA. MLDP
ERUPTION DETAILS: POSSIBLE ONGOING EM. REMNANT VA.
OBS VA DTG: 09/1740Z
OBS VA CLD: SFC/FL110 N1347 W06126 - N1330 W06104 - N1314 W06113 - N1322 W06140 - N1347 W06126 MOV NW 5KT SFC/FL400 N1452 W05740 - N1355 W05707 - N1302 W06032 - N1308 W06102 - N1328 W06100 - N1332 W06055 - N1452 W05740 MOV E 35KT
FCST VA CLD +6HR: 09/2330Z SFC/FL400 N1526 W05347 - N1338 W05316 - N1253 W05858 - N1350 W05912 - N1401 W05846 - N1526 W05347
FCST VA CLD +12HR: 10/0530Z SFC/FL400 N1625 W05007 - N1335 W04943 - N1305 W05610 - N1433 W05610 - N1510 W05607 - N1625 W05007
FCST VA CLD +18HR: 10/1130Z SFC/FL400 N1647 W04716 - N1313 W04626 - N1314 W05201 - N1529 W05214 - N1617 W05204 - N1647 W04716
RMK: DENSE HIGH WX CLDS HAVE OBSTRUCTED VIEW OF
SUMMIT BUT ONGOING EMS LIKELY. REMNANT VA MOV WNW
TO FL110 AND E TO ENE OF SUMMIT TO FL400. VAA
WILL LIKELY BE UPDATED FREQ TO ACCOUNT FOR CHANGE
IN ACT AND VA MOV. ...LEE
NXT ADVISORY: WILL BE ISSUED BY 20210410/0015Z

Volcanic Ash Advisory issued on 2021-04-09 at 15:38 UTC.

Key information extracted from original VAA message :

Ongoing eruption.
Updated to lower and account for se moving volcanic ash. Ongoing explosive eruption observation from uwi seismic research centre and satellite data. Volcanic ash spreading w to over 15nm and e to over 130nm. Lower level volcanic ash forecast to spread generally w while upper level volcanic ash forecast to spread e through t+18. And winds from hysplit. Mlevine.

Original Message :

Received FVXX25 at 15:40 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/1538Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/004
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. UWI
SEISMIC RESEARCH CENTRE.
ERUPTION DETAILS: ONGOING ERUPTION
OBS VA DTG: 09/1345Z
OBS VA CLD: SFC/FL060 N1334 W06108 - N1308 W06107 - N1259 W06135 - N1332 W06138 - N1334 W06108 MOV W 10KT SFC/FL400 N1437 W05842 - N1217 W05846 - N1301 W06105 - N1334 W06105 - N1437 W05842 MOV E 45KT
FCST VA CLD +6HR: 09/2000Z SFC/FL060 N1337 W06203 - N1335 W06107 - N1310 W06105 - N1259 W06203 - N1337 W06203 SFC/FL400 N1608 W05525 - N1125 W05512 - N1247 W06107 - N1404 W06110 - N1608 W05525
FCST VA CLD +12HR: 10/0200Z SFC/FL060 N1346 W06401 - N1337 W06112 - N1305 W06105 - N1243 W06359 - N1346 W06401 SFC/FL400 N1804 W05006 - N1132 W05008 - N1245 W06110 - N1328 W06116 - N1804 W05006
FCST VA CLD +18HR: 10/0800Z SFC/FL060 N1359 W06803 - N1332 W06112 - N1312 W06107 - N1205 W06803 - N1359 W06803 SFC/FL400 N1729 W04342 - N1143 W04344 - N1249 W06112 - N1335 W06116 - N1729 W04342
RMK: UPDATED TO LWR FL AND ACCOUNT FOR SE MOVG
VA. ONGOING EXPLOSIVE ERUPTION OBS FM UWI SEISMIC
RESEARCH CENTRE AND STLT DATA. VA SPRDG W TO OVER
15NM AND E TO OVER 130NM. LWR LVL VA FCST TO SPRD
GENLY W WHILE UPR LVL VA FCST TO SPRD E THRU
T+18. FL AND WINDS FM HYSPLIT ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210409/2145Z

Volcanic Ash Advisory issued on 2021-04-09 at 14:33 UTC.

Key information extracted from original VAA message :

Ongoing eruption.
Ongoing explosive eruption observation from uwi seismic research centre and satellite data. Volcanic ash spreading w to over 10nm and e to over 50nm. Lower level volcanic ash forecast to spread e and w while upper level volcanic ash forecast to spread e through t+18. And winds from hysplit. Mlevine.

Original Message :

Received FVXX25 at 14:46 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/1433Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/003
INFO SOURCE: GOES-16. NWP MODELS. HYSPLIT. UWI
SEISMIC RESEARCH CENTRE.
ERUPTION DETAILS: ONGOING ERUPTION
OBS VA DTG: 09/1345Z
OBS VA CLD: SFC/FL200 N1334 W06108 - N1308 W06107 - N1259 W06135 - N1332 W06138 - N1334 W06108 MOV W 10KT SFC/FL400 N1346 W06014 - N1303 W06013 - N1305 W06103 - N1334 W06105 - N1346 W06014 MOV E 45KT
FCST VA CLD +6HR: 09/2000Z SFC/FL200 N1337 W06203 - N1335 W06107 - N1310 W06105 - N1259 W06203 - N1337 W06203 SFC/FL400 N1546 W05648 - N1325 W05648 - N1247 W06107 - N1404 W06110 - N1546 W05648
FCST VA CLD +12HR: 10/0200Z SFC/FL200 N1341 W06014 - N1305 W06016 - N1256 W06207 - N1337 W06208 - N1341 W06014 SFC/FL400 N1758 W05044 - N1401 W05046 - N1250 W06105 - N1406 W06112 - N1758 W05044
FCST VA CLD +18HR: 10/0800Z SFC/FL200 N1444 W05358 - N1321 W05356 - N1205 W06803 - N1359 W06803 - N1444 W05358 SFC/FL400 N1551 W04400 - N1346 W04358 - N1249 W06112 - N1419 W06108 - N1551 W04400
RMK: ONGOING EXPLOSIVE ERUPTION OBS FM UWI
SEISMIC RESEARCH CENTRE AND STLT DATA. VA SPRDG W
TO OVER 10NM AND E TO OVER 50NM. LWR LVL VA FCST
TO SPRD E AND W WHILE UPR LVL VA FCST TO SPRD E
THRU T+18. FL AND WINDS FM HYSPLIT ...MLEVINE
NXT ADVISORY: WILL BE ISSUED BY 20210409/2030Z

Volcanic Ash Advisory issued on 2021-04-09 at 12:58 UTC.

Key information extracted from original VAA message :

Poss volcanic ash exhalation 09 1230 UTC.
We have received information suggesting a possible volcanic ash emission. We will gather further information and issue a full advisory as soon as possible.

Original Message :

Received FVXX25 at 13:05 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/1258Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W?INDIES
SUMMIT ELEV: 3865 FT [1178 M]
ADVISORY NR: 2021/002
INFO SOURCE: GOES-16. UWI SEISMIC RESEARCH
CENTRE.
ERUPTION DETAILS: POSS VA EXHALATION 09/1230Z
OBS VA DTG: 09/1240Z
OBS VA CLD: SFC/FL130 N1325 W06115 - N1325 W06106 - N1315 W06105 - N1314 W06116 - N1325 W06115 MOV W 5KT
FCST VA CLD +6HR: 09/1900Z NOT AVBL
FCST VA CLD +12HR: 10/0100Z NOT AVBL
FCST VA CLD +18HR: 10/0700Z NOT AVBL
RMK: WE HAVE RECEIVED INFORMATION SUGGESTING A
POSSIBLE VA EMISSION. WE WILL GATHER FURTHER
INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS
POSSIBLE.
NXT ADVISORY: AS SOON AS POSSIBLE

Volcanic Ash Advisory issued on 2021-04-09 at 01:27 UTC.

Key information extracted from original VAA message :

No volcanic ash emission observation in satellite.
Volcano alert level has been raised from orange to red. Steam and gas emission have increased in the last observation before a break in coverage at a manual station 24 hours. No volcanic ash seen in satellite imagery or reported to volcanic ash advisory center. Well defined hotspot seen in s/w. We will continue to closely monitor and advise as needed. Kibler.

Original Message :

Received FVXX25 at 01:34 UTC, 09/04/21 from KNES
VA ADVISORY
DTG: 20210409/0127Z
VAAC: WASHINGTON
VOLCANO: SOUFRIERE ST VINCENT 360150
PSN: N1319 W06110
AREA: W_INDIES
SUMMIT ELEV: 3864 FT [1178 M]
ADVISORY NR: 2021/001
INFO SOURCE: GOES-16. UWI SEISMIC RESEARCH
ERUPTION DETAILS: NO VA EMS OBS IN STLT
OBS VA DTG: 09/0100Z
OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA
FCST VA CLD +6HR: 09/0700Z NO VA EXP
FCST VA CLD +12HR: 09/1300Z NO VA EXP
FCST VA CLD +18HR: 09/1900Z NO VA EXP
RMK: VOLCANO ALERT LEVEL HAS BEEN RAISED FM
ORANGE TO RED. STEAM AND GAS EMS HAVE INCRD IN
THE LAST 24 HRS. NO VA SEEN IN STLT IMAGERY OR
RPRTD TO VAAC. WELL DEFINED HOTSPOT SEEN IN S/W.
WE WILL CONT TO CLOSELY MONITOR AND ADVISE AS
NEEDED ...KIBLER
NXT ADVISORY: NO FURTHER ADVISORIES

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