Overall Green Volcanic eruption alert for San Cristobal in Nicaragua on 11 Mar 2021 00:00 UTC

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Overall Green alert Volcanic eruption for San Cristobal

in Nicaragua

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)

19 Mar 23:08 19 Mar 23:55 20 Mar 05:24

20/03 05:24 2021-007

19/03 23:55 2021-006

19/03 23:08 2021-005

11/03 00:00

10/03 04:49 2021-004

09/03 23:01 2021-003

Volcanic Ash Advisory issued on 2021-03-20 at 05:24 UTC.

Key information extracted from original VAA message :

Possible volcanic ash emission ended.
Apparent volcanic ash from possible earlier em dispersed. No new activity noted or reported. Lee.

Original Message :

Received FVXX25 at 05:27 UTC, 20/03/21 from KNES
VA ADVISORY
DTG: 20210320/0524Z
VAAC: WASHINGTON
VOLCANO: SAN CRISTOBAL 344020
PSN: N1241 W08659
AREA: NICARAGUA
SUMMIT ELEV: 5725 FT [1745 M]
ADVISORY NR: 2021/007
INFO SOURCE: GOES-16.
ERUPTION DETAILS: POSSIBLE VA EMS ENDED.
OBS VA DTG: 20/0500Z
OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA.
FCST VA CLD +6HR: 20/1100Z NO VA EXP
FCST VA CLD +12HR: 20/1700Z NO VA EXP
FCST VA CLD +18HR: 20/2300Z NO VA EXP
RMK: APPARENT VA FROM POSSIBLE EARLIER EM
DISPERSED. NO NEW ACT NOTED OR REPORTED. ...LEE
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2021-03-19 at 23:55 UTC.

Key information extracted from original VAA message :

Volcanic ash eruption obsd.
Volcanic ash eruption seen on satellite imagery move approx 45 nmi ene from summit. Volcanic ash height and forecast based on imagery and model guidance. Winds around expected to move ene through forecast period. Kim.

Original Message :

Received FVXX25 at 23:58 UTC, 19/03/21 from KNES
VA ADVISORY
DTG: 20210319/2355Z
VAAC: WASHINGTON
VOLCANO: SAN CRISTOBAL 344020
PSN: N1241 W08659
AREA: NICARAGUA
SUMMIT ELEV: 5725 FT [1745 M]
ADVISORY NR: 2021/006
INFO SOURCE: GOES-16. NWP MODELS. ASH3D. VOLCAT.
ERUPTION DETAILS: VA ERUPTION OBSD
OBS VA DTG: 19/2310Z
OBS VA CLD: SFC/FL400 N1320 W08625 - N1248 W08611 - N1239 W08656 - N1244 W08702 - N1305 W08659 - N1320 W08625 MOV NE 25KT
FCST VA CLD +6HR: 20/0500Z SFC/FL400 N1422 W08358 - N1333 W08335 - N1311 W08428 - N1403 W08449 - N1422 W08358
FCST VA CLD +12HR: 20/1100Z SFC/FL400 N1528 W08125 - N1419 W08048 - N1352 W08204 - N1504 W08232 - N1528 W08125
FCST VA CLD +18HR: 20/1700Z NO VA EXP
RMK: VA ERUPTION SEEN ON STLT IMAGERY MOV APPROX 45 NMI
ENE FM SUMMIT. VA HEIGHT AND FRCST BASED ON
IMAGERY AND MODEL GUIDANCE. WINDS AROUND FL
EXPCD TO MOV ENE THRU FRCST PERIOD. ...KIM
NXT ADVISORY: WILL BE ISSUED BY 20210320/0600Z

Volcanic Ash Advisory issued on 2021-03-19 at 23:08 UTC.

Key information extracted from original VAA message :

Significant volcanic ash eruption.
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 23:11 UTC, 19/03/21 from KNES
VA ADVISORY
DTG: 20210319/2308Z
VAAC: WASHINGTON
VOLCANO: SAN CRISTOBAL 344020
PSN: N1241 W08659
AREA: NICARAGUA
SUMMIT ELEV: 5725 FT [1745 M]
ADVISORY NR: 2021/005
INFO SOURCE: GOES-16. VOLCAT.
ERUPTION DETAILS: SIGNIFICANT VA ERUPTION
OBS VA DTG: 19/2230Z
OBS VA CLD: SFC/FL N1312 W08647 - N1256 W08620 -
N1219 W08650 - N1237 W08719 - N1258 W08706 -
N1312 W08647 MOV 0KT
FCST VA CLD +6HR: NOT AVBL
FCST VA CLD +12HR: NOT AVBL
FCST VA CLD +18HR: 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 2021-03-11 at 00:00 UTC.

Key information extracted from original VAA message :

Original Message :

Volcanic Ash Advisory issued on 2021-03-10 at 04:49 UTC.

Key information extracted from original VAA message :

Volcanic ash not observation in satellite.
Volcanic ash not observation in satellite with partial weather cloud in vicinity of summit. No new repeats of volcanic ash emission received since prev vaa. Clark.

Original Message :

Received FVXX25 at 04:51 UTC, 10/03/21 from KNES
VA ADVISORY
DTG: 20210310/0449Z
VAAC: WASHINGTON
VOLCANO: SAN CRISTOBAL 344020
PSN: N1241 W08659
AREA: NICARAGUA
SUMMIT ELEV: 5725 FT [1745 M]
ADVISORY NR: 2021/004
INFO SOURCE: GOES-16.
ERUPTION DETAILS: VA NOT OBS IN SAT.
OBS VA DTG: 10/0430Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA
FCST VA CLD +6HR: 10/1030Z NO VA EXP
FCST VA CLD +12HR: 10/1630Z NO VA EXP
FCST VA CLD +18HR: 10/2230Z NO VA EXP
RMK: VA NOT OBS IN SAT WITH PARTIAL WX CLD OBSCN
INVOF SUMMIT. NO NEW RPTS OF VA EMS RECEIVED
SINCE PREV VAA. ...CLARK
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2021-03-09 at 23:01 UTC.

Key information extracted from original VAA message :

Volcanic ash em rprted.
Volcanic ash em is report at 600m above summit move southwest. Volcanic ash is very difficult to observation on satellite due to cloud cover. We will continue monitor webcam and satellite imagery for poss emission. Zhu.

Original Message :

Received FVXX25 at 23:02 UTC, 09/03/21 from KNES
VA ADVISORY
DTG: 20210309/2301Z
VAAC: WASHINGTON
VOLCANO: SAN CRISTOBAL 344020
PSN: N1241 W08659
AREA: NICARAGUA
SUMMIT ELEV: 5725 FT [1745 M]
ADVISORY NR: 2021/003
INFO SOURCE: GOES-16. NWP MODELS. INETER.
ERUPTION DETAILS: VA EM RPRTED
OBS VA DTG: 09/2030Z
OBS VA CLD: SFC/FL080 N1241 W08700 - N1241 W08700 - N1235 W08708 - N1240 W08711 - N1241 W08700 MOV SW 20KT
FCST VA CLD +6HR: 10/0230Z NO VA EXP
FCST VA CLD +12HR: 10/0830Z NO VA EXP
FCST VA CLD +18HR: 10/1430Z NO VA EXP
RMK: VA EM IS RPRT AT 600M ABOVE SUMMIT MOV SW.
VA IS VERY DIFFICULT TO OBS ON STLT DUE TO CLOUD
COVER. WE WILL CONTINUE MONITOR WEBCAM AND STLT
IMAGERY FOR POSS EMS. ...ZHU
NXT ADVISORY: WILL BE ISSUED BY 20210310/0500Z

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