Overall Green Volcanic eruption alert for Merapi in Indonesia on 12 Mar 2023 18:10 UTC

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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.

Measurements Levels

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

12 Mar 18:10 13 Mar 00:10 13 Mar 05:59 13 Mar 23:28 14 Mar 05:13 15 Mar 00:20 15 Mar 04:03 15 Mar 10:03 17 Mar 15:10

17/03 15:10 2023-23 DARWIN

15/03 10:03 2023-22 DARWIN

15/03 04:03 2023-21 DARWIN

15/03 00:20 2023-20 DARWIN

14/03 05:13 2023-19 DARWIN

13/03 23:28 2023-18 DARWIN

13/03 05:59 2023-17 DARWIN

13/03 00:10 2023-16 DARWIN

12/03 18:10 2023-15 DARWIN

12/03 15:50 2023-14 DARWIN

Volcanic Ash Advisory issued on 2023-03-17 at 15:10 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 140 (4200m) move w.
Discrete eruption observed on webcam. Volcanic ash unidentifiable on latest satellite imagery due to meteorological cloud. Height estimated.

Original Message :

Received FVAU02 at 15:12 UTC, 17/03/23 from ADRM
VA ADVISORY
DTG: 20230317/1510Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/23
INFO SOURCE: WEBCAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL140 MOV W
OBS VA DTG: 17/1500Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL140 090/05KT
FCST VA CLD +6 HR: 17/2100Z NOT AVBL
FCST VA CLD +12 HR: 18/0300Z NOT AVBL
FCST VA CLD +18 HR: 18/0900Z NOT AVBL
RMK: DISCRETE ERUPTION OBSERVED ON WEBCAM. VA UNIDENTIFIABLE
ON LATEST SATELLITE IMAGERY DUE TO MET CLOUD. HEIGHT
ESTIMATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2023-03-15 at 10:03 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Discrete volcanic ash emission to flight level 140 (4200m) last observation before a break in coverage at a manual station observation at 15 0350 UTC.
Current satellite imagery indicates that ash from volcano merapi has now dissipated with pyroclastic ow continuing. No other data source suggests an ongoing eruption. Advisory will be updated if new information is.

Original Message :

Received FVAU02 at 09:58 UTC, 15/03/23 from ADRM
VA ADVISORY
DTG: 20230315/1003Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/22
INFO SOURCE: HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: DISCRETE VA EMISSION TO FL140 LAST OBS AT
15/0350Z
EST VA DTG: 15/0940Z
EST VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL140 VRB05KT
FCST VA CLD +6 HR: 15/1540Z NO VA EXP
FCST VA CLD +12 HR: 15/2140Z NO VA EXP
FCST VA CLD +18 HR: 16/0340Z NO VA EXP
RMK: CURRENT SATELLITE IMAGERY INDICATES THAT ASH FROM
VOLCANO MERAPI HAS NOW DISSIPATED WITH PYROCLASTIC FLOW
CONTINUING.NO OTHER DATA SOURCE SUGGESTS AN ONGOING
ERUPTION. ADVISORY WILL BE UPDATED IF NEW INFORMATION IS

Volcanic Ash Advisory issued on 2023-03-15 at 04:03 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Discrete volcanic ash emission observation to flight level 140 (4200m) move south at 15 0350 UTC.
Cvghm reported eruption to 1200m above summit at 15/0336z. Volcanic ash observation on visible satellite imagery. Height and winds based off satellite imagery and model guidance. Volcanic ash expected to dissipate 6.

Original Message :

Received FVAU02 at 04:04 UTC, 15/03/23 from ADRM
VA ADVISORY
DTG: 20230315/0403Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/21
INFO SOURCE: WEBCAM, VONA, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: DISCRETE VA EMISSION OBS TO FL140 MOV S AT
15/0350Z
OBS VA DTG: 15/0350Z
OBS VA CLD: SFC/FL140 S0731 E11029 - S0758 E11039 - S0758 E11018 - S0731 E11024 MOV S 05KT
E11018 - S0731 E11024 MOV S 05KT
FCST VA CLD +6 HR: 15/0950Z NO VA EXP
FCST VA CLD +12 HR: 15/1550Z NO VA EXP
FCST VA CLD +18 HR: 15/2150Z NO VA EXP
RMK: CVGHM REPORTED ERUPTION TO 1200M ABOVE SUMMIT AT
15/0336Z. VA OBS ON VISIBLE SATELLITE IMAGERY. HEIGHT AND
WINDS BASED OFF SAT IMAGERY AND MODEL GUIDANCE. VA EXPECTED
TO DISSIPATE WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20230315/1003Z=

Volcanic Ash Advisory issued on 2023-03-15 at 00:20 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Discrete volcanic ash emission to flight level 140 (4200m) seen on webcam at 14 2243 UTC.
Eruption seen on webcam and estimated to be to flight level 140 (4200m) unidentifiable on satellite due to meteorological cloud in area. Height and winds based off webcam and model guidance.

Original Message :

Received FVAU02 at 00:20 UTC, 15/03/23 from ADRM
VA ADVISORY
DTG: 20230315/0020Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/20
INFO SOURCE: WEBCAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: DISCRETE VA EMISSION TO FL140 SEEN ON
WEBCAM AT 14/2243Z
OBS VA DTG: 14/2243Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
FL100/140 330/10KT
FCST VA CLD +6 HR: 15/0443Z NOT AVBL
FCST VA CLD +12 HR: 15/1043Z NOT AVBL
FCST VA CLD +18 HR: 15/1643Z NOT AVBL
RMK: ERUPTION SEEN ON WEBCAM AND ESTIMATED TO BE TO FL140.
UNIDENTIFIABLE ON SATELLITE DUE TO MET CLOUD IN AREA. HEIGHT
AND WINDS BASED OFF WEBCAM AND MODEL GUIDANCE.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2023-03-14 at 05:13 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash last observation before a break in coverage at a manual station observation to flight level 150 (4500m) move e at 14 0220 UTC.
Current satellite imagery indicates that volcanic ash from volcano merapi has now dissipated. Advisory terminated.

Original Message :

Received FVAU02 at 05:13 UTC, 14/03/23 from ADRM
VA ADVISORY
DTG: 20230314/0513Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/19
INFO SOURCE: VONA, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA LAST OBS TO FL150 MOV E AT 14/0220Z
OBS VA DTG: 14/0450Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
FL100/150 300/05KT
FCST VA CLD +6 HR: 14/1050Z NO VA EXP
FCST VA CLD +12 HR: 14/1650Z NO VA EXP
FCST VA CLD +18 HR: 14/2250Z NO VA EXP
RMK: CURRENT SATELLITE IMAGERY INDICATES THAT VA FROM
VOLCANO MERAPI HAS NOW DISSIPATED. ADVISORY TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2023-03-13 at 23:28 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Discrete volcanic ash emission observation to flight level 150 (4500m) move ese at 13 2310 UTC.
Volcanic ash observation on visibility satellite imagery moving east/southeast. Volcanic ash reported to 1500m above summit at 13/2250z. Volcanic ash forecast based on himawari imagery and model guidance. Volcanic ash expected to dissipate 6.

Original Message :

Received FVAU02 at 23:28 UTC, 13/03/23 from ADRM
VA ADVISORY
DTG: 20230313/2328Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/18
INFO SOURCE: VONA, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: DISCRETE VA EMISSION OBS TO FL150 MOV ESE
AT 13/2310Z
OBS VA DTG: 13/2310Z
OBS VA CLD: SFC/FL150 S0730 E11026 - S0741 E11057 - S0758 E11048 - S0733 E11023 MOV SE 05KT
E11048 - S0733 E11023 MOV SE 05KT
FCST VA CLD +6 HR: 14/0510Z NO VA EXP
FCST VA CLD +12 HR: 14/1110Z NO VA EXP
FCST VA CLD +18 HR: 14/1710Z NO VA EXP
RMK: VA OBS ON VIS SAT IMAGERY MOVING EAST/SOUTHEAST. VA
REPORTED TO 1500M ABOVE SUMMIT AT 13/2250Z. VA FORECAST
BASED ON HIMAWARI IMAGERY AND MODEL GUIDANCE. VA EXPECTED TO
DISSIPATE WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20230314/0528Z=

Volcanic Ash Advisory issued on 2023-03-13 at 05:59 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash last observation before a break in coverage at a manual station observed to flight level 140 (4200m) move nw at 13 0200 UTC.
Volcanic ash unidentifiable on latest satellite and webcam imgery in mostly clear conditions. Height and winds based on himawari-9 satellite img, webcam and model guidance.

Original Message :

Received FVAU02 at 05:59 UTC, 13/03/23 from ADRM
VA ADVISORY
DTG: 20230313/0559Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/17
INFO SOURCE: WEBCAM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA LAST OBSERVED TO FL140 MOV NW AT
13/0200Z
OBS VA DTG: 13/0610Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL140 180/05KT
FCST VA CLD +6 HR: 13/1210Z NO VA EXP
FCST VA CLD +12 HR: 13/1810Z NO VA EXP
FCST VA CLD +18 HR: 14/0010Z NO VA EXP
RMK: VA UNIDENTIFIABLE ON LATEST SATELLITE AND WEBCAM IMGERY
IN MOSTLY CLEAR CONDITIONS. HEIGHT AND WINDS BASED ON
HIMAWARI-9 SAT IMG, WEBCAM AND MODEL GUIDANCE.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2023-03-13 at 00:10 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Continuous emission to flight level 140 (4200m) move nw observation at 12 2330 UTC.
Volcanic ash discernible on visibility satellite img extend nw from summit. Webcam shows continuous emission. Height and forecast based on himawari-9 satellite img, webcam and model guidance. Winds weak and variable.

Original Message :

Received FVAU02 at 00:01 UTC, 13/03/23 from ADRM
VA ADVISORY
DTG: 20230313/0010Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/16
INFO SOURCE: WEBCAM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: CONTINUOUS EMISSION TO FL140 MOV NW OBS AT
12/2330Z
OBS VA DTG: 12/2330Z
OBS VA CLD: SFC/FL140 S0732 E11030 - S0735 E11026 - S0719 E10956 - S0707 E11007 MOV NW 05KT
E10956 - S0707 E11007 MOV NW 05KT
FCST VA CLD +6 HR: 13/0530Z SFC/FL140 S0738 E11031 - S0720 E10956 - S0706 E11008 - S0713 E11036
E10956 - S0706 E11008 - S0713 E11036
FCST VA CLD +12 HR: 13/1130Z SFC/FL140 S0738 E11031 - S0720 E10956 - S0706 E11008 - S0718 E11043
E10956 - S0706 E11008 - S0718 E11043
FCST VA CLD +18 HR: 13/1730Z SFC/FL140 S0740 E11033 - S0719 E10956 - S0706 E11008 - S0721 E11042
E10956 - S0706 E11008 - S0721 E11042
RMK: VA DISCERNIBLE ON VIS SAT IMG EXTD NW FM SUMMIT. WEBCAM
SHOWS CONTINUOUS EMISSION. HEIGHT AND FCST BASED ON
HIMAWARI-9 SAT IMG, WEBCAM AND MODEL GUIDANCE. WINDS WEAK
AND VRB.
NXT ADVISORY: NO LATER THAN 20230313/0610Z=

Volcanic Ash Advisory issued on 2023-03-12 at 18:10 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Continuous emission to flight level 140 (4200m) move e last observation before a break in coverage at a manual station observation at 12 1800 UTC.
Volcanic ash discernible on rgb satellite img extend e from summit. Webcam show continuous emission. Height and forecast based on himawari-9 satellite img, webcam and model guidance. Winds weak and variable from t+12.

Original Message :

Received FVAU02 at 18:09 UTC, 12/03/23 from ADRM
VA ADVISORY
DTG: 20230312/1810Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/15
INFO SOURCE: WEBCAM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: CONTINUOUS EMISSION TO FL140 MOV E LAST
OBS AT 12/1800Z
OBS VA DTG: 12/1800Z
OBS VA CLD: SFC/FL140 S0736 E11024 - S0732 E11022 - S0724 E11024 - S0722 E11044 - S0738 E11045 MOV E 05KT
E11024 - S0722 E11044 - S0738 E11045 MOV E 05KT
FCST VA CLD +6 HR: 13/0000Z SFC/FL140 S0732 E11022 - S0726 E11026 - S0719 E11047 - S0735 E11050 - S0737 E11027
E11026 - S0719 E11047 - S0735 E11050 - S0737 E11027
FCST VA CLD +12 HR: 13/0600Z SFC/FL140 S0736 E11026 - S0732 E11023 - S0715 E11030 - S0716 E11047 - S0729 E11049
E11023 - S0715 E11030 - S0716 E11047 - S0729 E11049
FCST VA CLD +18 HR: 13/1200Z SFC/FL140 S0735 E11024 - S0718 E11013 - S0713 E11030 - S0721 E11042 - S0736 E11030
E11013 - S0713 E11030 - S0721 E11042 - S0736 E11030
RMK: VA DISCERNIBLE ON RGB SAT IMG EXTD E FM SUMMIT. WEBCAM
SHOW CONTINUOUS EMISSION. HEIGHT AND FCST BASED ON
HIMAWARI-9 SAT IMG, WEBCAM AND MODEL GUIDANCE. WINDS WEAK
AND VRB FM T+12.
NXT ADVISORY: NO LATER THAN 20230313/0010Z=

Volcanic Ash Advisory issued on 2023-03-12 at 15:50 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 160 (4800m) move north at 12 1110 UTC.
Volcanic ash from eruption to flight level 160 (4800m) at 12 0919 UTC has now dissipated. Webcam and ground reports indicate that intermittent pyroclastic ow is still occurring but not discernible on satellite img due to meteorological cloud. Advisory will be reissued if new information is received.

Original Message :

Received FVAU01 at 15:46 UTC, 12/03/23 from ADRM
VA ADVISORY
DTG: 20230312/1550Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0732 E11027
AREA: INDONESIA
SUMMIT ELEV: 2910M
ADVISORY NR: 2023/14
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL160 MOV N AT 12/1110Z
OBS VA DTG: 12/1530Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL160 180/05KT
FCST VA CLD +6 HR: 12/2130Z NOT AVBL
FCST VA CLD +12 HR: 13/0330Z NOT AVBL
FCST VA CLD +18 HR: 13/0930Z NOT AVBL
RMK: VA FROM ERUPTION TO FL160 AT 12/0919Z HAS NOW
DISSIPATED. WEBCAM AND GROUND REPORTS INDICATE THAT
INTERMITTENT PYROCLASTIC FLOW IS STILL OCCURRING BUT NOT
DISCERNIBLE ON SAT IMG DUE TO MET CLOUD. ADVISORY WILL BE
REISSUED IF NEW INFORMATION IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=

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