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.

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2021-01-28 00:40


Original Message :

Received FVAU01 at 00:39 UTC, 28/01/21 from ADRM
VA ADVISORY
DTG: 20210128/0040Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/12
INFO SOURCE: HIMAWARI-8, CVGHM, WEBCAM
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: LOCALISED VA EMISSION TO FL120
OBS VA DTG: 28/0040Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL120 250/15KT
FCST VA CLD +6 HR: 28/0640Z NO VA EXP
FCST VA CLD +12 HR: 28/1240Z NO VA EXP
FCST VA CLD +18 HR: 28/1840Z NO VA EXP
RMK: VOLCANO AND SURROUNDING AREA OBSCURED BY MET CLOUD. VA
HAS NOT BEEN OBSERVED FOR OVER 15 HOURS, AND NO OTHER
SOURCES INDICATE THE PRESENCE OF VA. LOCAL MINOR VA
EMISSIONS ARE POSSIBLE WITH CONTINUING PYROCLASTIC FLOW
EVENTS. ADVISORY TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

2021-01-27 18:40


Original Message :

Received FVAU01 at 18:41 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/1840Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/11
INFO SOURCE: HIMAWARI-8, CVGHM, WEBCAM
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: LOCALISED VA EMISSION TO FL120
OBS VA DTG: 27/1840Z
OBS VA CLD: SFC/FL120 S0724 E11033 - S0741 E11039 - S0743 E11019 - S0732 E11015 - S0724 E11020 MOV E 10KT
E11019 - S0732 E11015 - S0724 E11020 MOV E 10KT
FCST VA CLD +6 HR: 28/0040Z SFC/FL120 S0730 E11036 - S0743 E11033 - S0741 E11018 - S0728 E11017 - S0724 E11030
E11033 - S0741 E11018 - S0728 E11017 - S0724 E11030
FCST VA CLD +12 HR: 28/0640Z SFC/FL120 S0740 E11020 - S0729 E11017 - S0724 E11033 - S0742 E11036
E11017 - S0724 E11033 - S0742 E11036
FCST VA CLD +18 HR: 28/1240Z SFC/FL120 S0725 E11034 - S0742 E11037 - S0743 E11018 - S0726 E11017
E11037 - S0743 E11018 - S0726 E11017
RMK: VA CURRENTLY NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE
TO MET CLOUD. WEBCAM IMAGERY INDICATES VA EMISSION JUST
ABOVE THE VOLCANO SUMMIT. PYROCLASTIC FLOW CONTINUING. VA
HEIGHT AND MOVEMENT BASED ON MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20210128/0040Z=

2021-01-27 12:40


Original Message :

Received FVAU01 at 12:41 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/1240Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/10
INFO SOURCE: HIMAWARI-8, CVGHM, WEBCAM, PIREP
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: LOCALISED VA EMISSION TO FL120
OBS VA DTG: 27/1240Z
OBS VA CLD: SFC/FL120 S0730 E11036 - S0739 E11034 - S0742 E11021 - S0731 E11017 - S0723 E11029 MOV E 05KT
E11021 - S0731 E11017 - S0723 E11029 MOV E 05KT
FCST VA CLD +6 HR: 27/1840Z SFC/FL120 S0724 E11033 - S0741 E11039 - S0743 E11019 - S0732 E11015 - S0724 E11020
E11039 - S0743 E11019 - S0732 E11015 - S0724 E11020
FCST VA CLD +12 HR: 28/0040Z SFC/FL120 S0724 E11030 - S0730 E11036 - S0743 E11033 - S0741 E11018 - S0728 E11017
E11036 - S0743 E11033 - S0741 E11018 - S0728 E11017
FCST VA CLD +18 HR: 28/0640Z SFC/FL120 S0740 E11020 - S0729 E11017 - S0724 E11033 - S0742 E11036
E11017 - S0724 E11033 - S0742 E11036
RMK: CURRENT SATELLITE IMAGERY AND MULTIPLE PIREPS INDICATE
THAT VA TO FL400 HAS NOW DISSIPATED. LOCALISED VA EMISSION
TO FL120 EXPECTED DUE TO SUPERHEATED PYROCLASTIC FLOW,
HOWEVER OBSCURED BY MET CLOUD.
NXT ADVISORY: NO LATER THAN 20210127/1840Z=

2021-01-27 09:40


Original Message :

Received FVAU01 at 09:39 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/0940Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/9
INFO SOURCE: HIMAWARI-8, WEBCAM, SOCIAL MEDIA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA TO FL400 AT 27/0720Z MOV NW
OBS VA DTG: 27/0940Z
OBS VA CLD: SFC/FL200 S0747 E11019 - S0733 E11004 - S0712 E11023 - S0711 E11051 - S0741 E11053 MOV NE 05KT SFC/FL400 S0712 E11023 - S0733 E11004 - S0708 E10929 - S0602 E10948 - S0615 E11058 - S0711 E11051 MOV NW 15KT
S0615 E11058 - S0711 E11051 MOV NW 15KT
FCST VA CLD +6 HR: 27/1540Z SFC/FL200 S0719 E11020 - S0721 E11042 - S0745 E11044 - S0750 E11018 - S0732 E11005
E11042 - S0745 E11044 - S0750 E11018 - S0732 E11005
FCST VA CLD +12 HR: 27/2140Z SFC/FL200 S0720 E11038 - S0748 E11041 - S0749 E11017 - S0731 E11003 - S0717 E11016
E11041 - S0749 E11017 - S0731 E11003 - S0717 E11016
FCST VA CLD +18 HR: 28/0340Z SFC/FL200 S0748 E11033 - S0746 E11010 - S0721 E11010 - S0721 E11039
E11010 - S0721 E11010 - S0721 E11039
RMK: VA TO FL400 OBS AT 27/0630Z, MOV NNW. MULTIPLE GROUND
REPORTS OF SIGNIFICANT ERUPTION. LOCALISED VA EMISSION TO
FL200 DUE TO SUPERHEATED PYROCLASTIC FLOW EXPECTED TO MOV
NE, HOWEVER OBSCURED BY MET CLOUD. VA TO FL400 EXPECTED TO
DISSIPATE WITHIN 5HRS.
NXT ADVISORY: NO LATER THAN 20210127/1240Z=

2021-01-27 08:40


Original Message :

Received FVAU01 at 08:39 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/0840Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/8
INFO SOURCE: HIMAWARI-8, WEBCAM, SOCIAL MEDIA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA TO FL400 AT 27/0720Z MOV NW
OBS VA DTG: 27/0840Z
OBS VA CLD: SFC/FL200 S0736 E11014 - S0736 E11050 - S0712 E11140 - S0754 E11159 - S0811 E11012 - S0730 E10929 - S0651 E10939 MOV NW 15KT SFC/FL400 S0736 E11013 - S0618 E10915 - S0526 E10954 - S0534 E11105 - S0700 E11206 - S0736 E11050
S0526 E10954 - S0534 E11105 - S0700 E11206 - S0736 E11050
FCST VA CLD +6 HR: 27/1440Z SFC/FL200 S0747 E11019 - S0734 E11004 - S0712 E11023 - S0656 E11057 - S0734 E11110
E11004 - S0712 E11023 - S0656 E11057 - S0734 E11110
FCST VA CLD +12 HR: 27/2040Z SFC/FL200 S0750 E11018 - S0732 E11005 - S0705 E11031 - S0703 E11102 - S0742 E11104
E11005 - S0705 E11031 - S0703 E11102 - S0742 E11104
FCST VA CLD +18 HR: 28/0240Z SFC/FL200 S0749 E11017 - S0731 E11003 - S0702 E11039 - S0705 E11108 - S0749 E11105
E11003 - S0702 E11039 - S0705 E11108 - S0749 E11105
RMK: VA TO FL400 OBS AT 27/0630Z, MOV NNW. MULTIPLE GROUND
REPORTS OF SIGNIFICANT ERUPTION. LOCALISED VA EMISSION TO
FL200 DUE TO SUPERHEATED PYROCLASTIC FLOW EXPECTED TO MOV
NE, HOWEVER OBSCURED BY MET CLOUD. VA TO FL400 EXPECTED TO
DISSIPATE WITHIN 6HRS.
NXT ADVISORY: NO LATER THAN 20210127/0940Z=

2021-01-27 07:40


Original Message :

Received FVAU01 at 07:41 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/0740Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/7
INFO SOURCE: HIMAWARI-8, WEBCAM, SOCIAL MEDIA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA TO FL400 AT 27/0720Z MOV NW
OBS VA DTG: 27/0740Z
OBS VA CLD: SFC/FL400 S0735 E11030 - S0733 E11024 - S0722 E11014 - S0713 E11020 - S0713 E11029 - S0720 E11035 MOV NW 15KT
15KT
FCST VA CLD +6 HR: 27/1340Z SFC/FL400 S0736 E11050 - S0717 E11002 - S0618 E10915 - S0543 E11002 - S0545 E11100 - S0700 E11206
E11206
FCST VA CLD +12 HR: 27/1940Z NO VA EXP
FCST VA CLD +18 HR: 28/0140Z NO VA EXP
RMK: VA TO FL400 BASED ON IR TEMP OF -50C AT 27/0630Z, MOV
NNW. MULTIPLE GROUND REPORTS OF SIGNIFICANT ERUPTION. VA BLW
FL240 EXPECTED TO MOV NE AT 20KT, HOWEVER OBSCURED BY MET
CLOUD.
NXT ADVISORY: NO LATER THAN 20210127/0840Z=

2021-01-27 07:20


Original Message :

Received FVAU01 at 07:23 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/0720Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/6
INFO SOURCE: HIMAWARI-8, WEBCAM, SOCIAL MEDIA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA TO FL400 AT 27/0700Z
OBS VA DTG: 27/0720Z
OBS VA CLD: SFC/FL400 S0734 E11023 - S0722 E11021 - S0716 E10927 - S0722 E10838 - S0736 E10932 MOV NW 15KT
E10927 - S0722 E10838 - S0736 E10932 MOV NW 15KT
FCST VA CLD +6 HR: 27/1320Z SFC/FL400 S0700 E10946 - S0556 E10832 - S0503 E10915 - S0515 E11023 - S0640 E11026
E10832 - S0503 E10915 - S0515 E11023 - S0640 E11026
FCST VA CLD +12 HR: 27/1920Z NOT AVBL
FCST VA CLD +18 HR: 28/0120Z NOT AVBL
RMK: VA TO FL400 BASED ON IR TEMP OF -50C AT 27/0630Z.
MULTIPLE GROUND REPORTS OF SIGNIFICANT ERUPTION. MET CLOUD
IN AREA OBSCURES VA BLW FL240, WHICH IS EXPECTED TO TRAVEL
TO NE AT 20KT.
NXT ADVISORY: NO LATER THAN 20210127/0740Z=

2021-01-27 07:00


Original Message :

Received FVAU01 at 07:02 UTC, 27/01/21 from ADRM
VA ADVISORY
DTG: 20210127/0700Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/5
INFO SOURCE: HIMAWARI-8, WEBCAM, SOCIAL MEDIA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: VA TO FL400 AT 27/0640Z
OBS VA DTG: 27/0700Z
OBS VA CLD: SFC/FL400 S0733 E11026 - S0730 E11024 - S0728 E11026 - S0727 E11030 - S0731 E11033 - S0735 E11030 MOV NW 15KT
15KT
FCST VA CLD +6 HR: 27/1300Z NOT AVBL
FCST VA CLD +12 HR: 27/1900Z NOT AVBL
FCST VA CLD +18 HR: 28/0100Z NOT AVBL
RMK: SIGNIFICANT ERUPTION UNDERWAY, AWAITING FURTHER
CONFIRMATION FROM GROUND OBSERVERS. FOLLOW UP DETAILS TO BE
PROVIDED AS SOON AS POSSIBLE.
NXT ADVISORY: NO LATER THAN 20210127/0720Z=

2021-01-26 23:00


Original Message :

Received FVAU01 at 23:01 UTC, 26/01/21 from ADRM
VA ADVISORY
DTG: 20210126/2300Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/4
INFO SOURCE: WEBCAM, HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: LOCAL VA EMISSION TO FL100 AT 26/2251Z
OBS VA DTG: 26/2300Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL100 240/15KT
FCST VA CLD +6 HR: 27/0500Z NOT AVBL
FCST VA CLD +12 HR: 27/1100Z NOT AVBL
FCST VA CLD +18 HR: 27/1700Z NOT AVBL
RMK: VA EMISSION OBS TO SUMMIT HEIGHT DUE TO CONTINUING LAVA
FLOWS, REMAINING NEAR SUMMIT. VA NOT IDENTIFIABLE ON SAT IMG
DUE TO MET CLOUD. ADVISORY WILL BE UPDATED IF FURTHER INFO
IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=

2021-01-20 10:17


Original Message :

Received FVAU01 at 10:17 UTC, 20/01/21 from ADRM
VA ADVISORY
DTG: 20210120/1017Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/3
INFO SOURCE: WEB-CAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO APPROXIMATELY FL100 AT 20/1000Z
OBS VA DTG: 20/1017Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL100 VRB05KT
FCST VA CLD +6 HR: 20/1617Z NOT AVBL
FCST VA CLD +12 HR: 20/2217Z NOT AVBL
FCST VA CLD +18 HR: 21/0417Z NOT AVBL
RMK: ASH AND SMOKE DISCERNIBLE ON WEBCAM FLOWING DOWNSTREAM
OF VOLCANO AND LOCALISED AROUND THE SUMMIT. PYROCLASTIC FLOW
CONTINUES TO SLIDE FROM THE SUMMIT. VA WAS NOT DISCERNIBLE
ON SAT IMG DUE TO MET CLOUD. ADVISORY WILL BE UPDATED IF NEW
INFO IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=

2021-01-09 03:00


Original Message :

Received FVAU02 at 03:00 UTC, 09/01/21 from ADRM
VA ADVISORY
DTG: 20210109/0300Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/2
INFO SOURCE: CVGHM, HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA REPORTED TO FL100 AT 09/0145Z
OBS VA DTG: 09/0300Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL100 210/10KT
FCST VA CLD +6 HR: 09/0900Z NOT AVBL
FCST VA CLD +12 HR: 09/1500Z NOT AVBL
FCST VA CLD +18 HR: 09/2100Z NOT AVBL
RMK: CVGHM VONA REPORTED PYROCLASTIC FLOW WITH VA CLOUD AT
09/0145Z, AND VA HAS SINCE DISSIPATED. VA WAS NOT
DISCERNIBLE ON SAT IMG. ADVISORY WILL BE UPDATED IF NEW INFO
IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=

2021-01-07 03:34


Original Message :

Received FVAU01 at 03:35 UTC, 07/01/21 from ADRM
VA ADVISORY
DTG: 20210107/0334Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/1
INFO SOURCE: VONA, HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: DISCTRETE ERUPTION TO FL100
OBS VA DTG: 07/0334Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL100 200/10KT
FCST VA CLD +6 HR: 07/0934Z NOT AVBL
FCST VA CLD +12 HR: 07/1534Z NOT AVBL
FCST VA CLD +18 HR: 07/2134Z NOT AVBL
RMK: GROUND REPORT OF VA TO FL100 AT 07/0102Z, ERUPTION HAS
SINCE CEASED AND VA CANNOT BE IDENTIFIED ON SATELLITE
IMAGERY. ADVISORY WILL BE UPDATED IF NEW INFORMATION IS

2020-11-30 00:00


Original Message :