Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 .
The full report is as follows:
FVAU04 at 17:49 UTC, 28/12/25 from ADRM
VA ADVISORY
DTG: 20251228/1749Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SOURCE ELEV: 2885M AMSL
ADVISORY NR: 2025/180
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL130 REPORTED AT 28/1633Z MOV N
EST VA DTG: 28/1730Z
EST VA CLD: SFC/FL130 S0029 E10029 – S0023 E10019 – N0015
E10016 – N0015 E10100 – S0015 E10056 MOV N 05KT
FCST VA CLD +6 HR: 28/2330Z NO VA EXP
FCST VA CLD +12 HR: 29/0530Z NO VA EXP
FCST VA CLD +18 HR: 29/1130Z NO VA EXP
RMK: CVGHM REPORT VA TO 900M ABV SUMMIT. VA NOT IDENTIFIABLE
ON SATELLITE IMAGE. AREA OBSC BY MET CLD. EXPECTED TO
DISSIPATE IN 6 HRS. HEIGHT AND FCST BASED ON VONA AND MODEL
GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251228/2349Z=