Satellite image of Semeru volcano on 13 Aug 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.Original VAAC bulletin:FVAU02 at 10:45 UTC, 13/08/26 from ADRMVA ADVISORYDTG: 20260813/1050ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/921INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 OBS AT 13/1030Z MOV SEOBS VA DTG: 13/1030ZOBS VA CLD: SFC/FL150 S0800 E11256 - S0819 E11332 - S0840 E11324 - S0848 E11303 - S0805 E11248 MOV SE 10KTFCST VA CLD +6 HR: 13/1630Z SFC/FL150 S0800 E11256 - S0819 E11332 - S0840 E11324 - S0847 E11303 - S0805 E11247FCST VA CLD +12 HR: 13/2230Z SFC/FL150 S0800 E11256 - S0816 E11324 - S0836 E11316 - S0838 E11257 - S0805 E11247FCST VA CLD +18 HR: 14/0430Z SFC/FL150 S0800 E11244 - S0752 E11259 - S0808 E11322 - S0827 E11314 - S0830 E11251RMK: VA OBS ON SATELLITE IMAGERY MOV SE. REGULAR DISCRETE VA EMISSIONS ARE ONGOING. VA HEIGHT AND FORECAST BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260813/1650Z=