Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Sep 3, 06:00 UTC

Satellite image of Semeru volcano on 3 Sep 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150, and moving at 05 kts in N direction.
Original VAAC bulletin:

FVAU02 at 06:00 UTC, 03/09/26 from ADRM
VA ADVISORY
DTG: 20260903/0600Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1007
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 03/0006Z
EST VA DTG: 03/0540Z
EST VA CLD: SFC/FL150 S0808 E11258 - S0808 E11252 - S0737
 E11241 - S0737 E11310 MOV N 05KT
FCST VA CLD +6 HR: 03/1140Z SFC/FL150 S0808 E11258 - S0807
 E11250 - S0741 E11245 - S0734 E11307 - S0751 E11321
FCST VA CLD +12 HR: 03/1740Z SFC/FL150 S0810 E11255 - S0806
 E11249 - S0739 E11255 - S0741 E11317 - S0800 E11322
FCST VA CLD +18 HR: 03/2340Z SFC/FL150 S0807 E11251 - S0800
 E11252 - S0754 E11324 - S0821 E11320
RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY.
 HOWEVER, EMISSION IS EXPECTED TO BE ONGOING. VA HEIGHT AND
 MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260903/1200Z=