Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Aug 30, 03:20 UTC

Satellite image of Semeru volcano on 30 Aug 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.
Original VAAC bulletin:

FVAU02 at 03:45 UTC, 30/08/26 from ADRM
VA ADVISORY
DTG: 20260830/0350Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/989
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 MOV SOUTH-SOUTHWEST
OBS VA DTG: 30/0320Z
OBS VA CLD: SFC/FL150 S0801 E11253 - S0802 E11300 - S0828
 E11301 - S0838 E11246 - S0830 E11234 MOV S 05KT
FCST VA CLD +6 HR: 30/0920Z SFC/FL150 S0806 E11301 - S0838
 E11253 - S0824 E11218 - S0801 E11227 - S0759 E11255
FCST VA CLD +12 HR: 30/1520Z SFC/FL150 S0808 E11258 - S0824
 E11219 - S0756 E11215 - S0804 E11259
FCST VA CLD +18 HR: 30/2120Z SFC/FL150 S0808 E11258 - S0823
 E11218 - S0756 E11215 - S0803 E11258
RMK: INTERMITTENT DISCRETE ERUPTION IDENTIFIABLE ON
 SATELLITE IMAGERY. VA HEIGHT AND MOVEMENT BASED ON SATELLITE
 IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260830/0950Z=