Overall Green alert Volcanic eruption for Merapi
in Indonesia

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.




Volcanic Ash Advisory issued on 2022-03-28 at 09:58 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • No eruption. Re-suspended volcanic ash to flight level 100 (3000m) move e last observation before a break in coverage at a manual station observation 28 0809 UTC.
  • No eruption. Re-suspended volcanic ash reported by cvghm and observation on webcam. Volcanic ash height and movement based on webcam img and model guidance. Volcanic ash is expected to dissipate 2.

Original Message :

Received FVAU01 at 09:59 UTC, 28/03/22 from ADRM
VA ADVISORY
DTG: 20220328/0958Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2022/5
INFO SOURCE: CVGHM,WEBCAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: NO ERUPTION. RE-SUSPENDED VA TO FL100 MOV
E LAST OBS 28/0809Z
EST VA DTG: 28/0940Z
EST VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
FL090/100 280/10KT
FCST VA CLD +6 HR: 28/1540Z NO VA EXP
FCST VA CLD +12 HR: 28/2140Z NO VA EXP
FCST VA CLD +18 HR: 29/0340Z NO VA EXP
RMK: NO ERUPTION. RE-SUSPENDED VA REPORTED BY CVGHM AND OBS
ON WEBCAM. VA HEIGHT AND MOVEMENT BASED ON WEBCAM IMG AND
MODEL GUIDANCE. VA IS EXPECTED TO DISSIPATE WITHIN 2 HOURS.
NXT ADVISORY: NO FURTHER ADVISORIES=
Volcanic Ash Advisory issued on 2022-03-09 at 17:17 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash eruption to flight level 200 (6000m) move nnw observation at 09 1700 UTC.
  • Volcanic ash eruption reported by cvghm to flight level 200 (6000m) volcanic ash indiscernible on satellite img due to meteorological cloud. Volcanic ash height based on ground report, volcanic ash movement based on model guidance. Advisory will be reissued if new information is received.

Original Message :

Received FVAU01 at 17:17 UTC, 09/03/22 from ADRM
VA ADVISORY
DTG: 20220309/1717Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2022/4
INFO SOURCE: CVGHM
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA ERUPTION TO FL200 MOV NNW OBS AT
09/1700Z
OBS VA DTG: 09/1700Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
FL100/200 160/05KT
FCST VA CLD +6 HR: 09/2300Z NOT AVBL
FCST VA CLD +12 HR: 10/0500Z NOT AVBL
FCST VA CLD +18 HR: 10/1100Z NOT AVBL
RMK: VA ERUPTION REPORTED BY CVGHM TO FL200. VA
INDISCERNIBLE ON SAT IMG DUE TO MET CLOUD. VA HEIGHT BASED
ON GROUND REPORT, VA MOVEMENT BASED ON MODEL GUIDANCE.
ADVISORY WILL BE REISSUED IF NEW INFORMATION IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=
Volcanic Ash Advisory issued on 2022-03-09 at 03:52 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation in satellite.
  • Satellite imagery revealed volcanic ash emission extending apprx 20-25nm e/ene of summit. Webcam curr inop. Little change forecast in winds through t+6 hours based on nwp. Coverdale.

Original Message :

Received FVXX21 at 03:56 UTC, 09/03/22 from KNES
VA ADVISORY
DTG: 20220309/0352Z
VAAC: WASHINGTON
VOLCANO: SANGAY 352090
PSN: S0200 W07820
AREA: ECUADOR
SUMMIT ELEV: 17159 FT [5230 M]
ADVISORY NR: 2022/284
INFO SOURCE: GOES-16. NWP MODELS.
ERUPTION DETAILS: VA EMS OBS IN STLT
OBS VA DTG: 09/0320Z
OBS VA CLD: SFC/FL210 S0153 W07759 - S0201 W07757 - S0202 W07820 - S0159 W07819 - S0153 W07759 MOV E 10KT
FCST VA CLD +6HR: 09/0930Z SFC/FL210 S0150 W07753 - S0202 W07751 - S0202 W07820 - S0200 W07819 - S0150 W07753
FCST VA CLD +12HR: 09/1530Z NO VA EXP
FCST VA CLD +18HR: 09/2130Z NO VA EXP
RMK: STLT IMAGERY REVEALED VA EMS EXTENDING APPRX
20-25NM E/ENE OF SUMMIT. WEBCAM CURR INOP. LTLCG
FCST IN WINDS THRU T+6 HRS BASED ON NWP MDLS.
...COVERDALE
NXT ADVISORY: WILL BE ISSUED BY 20220309/0945Z