Satellite image of Semeru volcano on 3 Sep 2026Explosive 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 ADRMVA ADVISORYDTG: 20260903/0600ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/1007INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 03/0006ZEST VA DTG: 03/0540ZEST VA CLD: SFC/FL150 S0808 E11258 - S0808 E11252 - S0737 E11241 - S0737 E11310 MOV N 05KTFCST VA CLD +6 HR: 03/1140Z SFC/FL150 S0808 E11258 - S0807 E11250 - S0741 E11245 - S0734 E11307 - S0751 E11321FCST VA CLD +12 HR: 03/1740Z SFC/FL150 S0810 E11255 - S0806 E11249 - S0739 E11255 - S0741 E11317 - S0800 E11322FCST VA CLD +18 HR: 03/2340Z SFC/FL150 S0807 E11251 - S0800 E11252 - S0754 E11324 - S0821 E11320RMK: 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=