Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 20 kts in SE direction.
The full report is as follows:
FVAU02 at 21:15 UTC, 11/12/25 from ADRM
VA ADVISORY
DTG: 20251211/2020Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1414
INFO SOURCE: CVGHM
ERUPTION DETAILS: VA TO FL140 LAST REPORTED AT 11/1748Z
EST VA DTG: 11/1950Z
EST VA CLD: SFC/FL140 S0804 E11255 – S0809 E11310 – S0822
E11308 – S0822 E11256 – S0806 E11252 MOV SE 20KT
FCST VA CLD +6 HR: 12/0150Z SFC/FL140 S0804 E11255 – S0809
E11310 – S0822 E11308 – S0822 E11256 – S0806 E11252
FCST VA CLD +12 HR: 12/0750Z SFC/FL140 S0804 E11254 – S0806
E11310 – S0816 E11310 – S0821 E11302 – S0806 E11252
FCST VA CLD +18 HR: 12/1350Z SFC/FL140 S0804 E11254 – S0806
E11310 – S0816 E11310 – S0821 E11302 – S0806 E11252
RMK: VA NOT IDENTIFIABLE ON SAT IMG DUE TO MET CLOUD COVER.
GROUND REPORTS INDICATE INTERMITTENT DISCRETE EMISSIONS
REMAIN ONGOING. LOW CONFIDENCE IN FORECAST DUE TO LIGHT
WINDS. HEIGHT BASED ON GROUND REPORT AND MOVEMENT BASED ON
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251212/0220Z=