Ibu Volcano Volcanic Ash Advisory: VA TO FL070 LAST REPORTED AT 01/0553Z EST VA DTG: 01/1100Z to 7000 ft (2100 m)

Satellite image of Ibu volcano on 1 Dec 2025

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in E direction.
The full report is as follows:

FVAU01 at 11:18 UTC, 01/12/25 from ADRM
VA ADVISORY
DTG: 20251201/1120Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SUMMIT ELEV: 1325M
ADVISORY NR: 2025/1347
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL070 LAST REPORTED AT 01/0553Z
EST VA DTG: 01/1100Z
EST VA CLD: SFC/FL070 N0127 E12735 – N0133 E12734 – N0146
E12811 – N0124 E12813 MOV E 10KT
FCST VA CLD +6 HR: 01/1700Z SFC/FL070 N0127 E12735 – N0133
E12735 – N0145 E12812 – N0123 E12814
FCST VA CLD +12 HR: 01/2300Z SFC/FL070 N0127 E12735 – N0133
E12734 – N0146 E12811 – N0124 E12815
FCST VA CLD +18 HR: 02/0500Z SFC/FL070 N0126 E12734 – N0133
E12734 – N0146 E12811 – N0125 E12814
RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO
MET CLOUD. RECENT GROUND REPORTS INDICATE INTERMITTENT
DISCRETE VA EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT
BASED ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251201/1720Z=