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 17:22 UTC, 23/09/26 from ADRMVA ADVISORYDTG: 20260923/1725ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/1091INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 OBS AT 23/1700Z MOV SEEST VA DTG: 23/1700ZEST VA CLD: SFC/FL150 S0804 E11251 - S0801 E11256 - S0813 E11322 - S0835 E11320 - S0838 E11300 MOV SE 10KTFCST VA CLD +6 HR: 23/2300Z SFC/FL150 S0805 E11250 - S0759 E11255 - S0759 E11320 - S0822 E11323 - S0834 E11305FCST VA CLD +12 HR: 24/0500Z SFC/FL150 S0805 E11250 - S0759 E11254 - S0803 E11320 - S0819 E11321 - S0827 E11302FCST VA CLD +18 HR: 24/1100Z SFC/FL150 S0803 E11251 - S0759 E11256 - S0805 E11321 - S0823 E11319 - S0829 E11300RMK: DISCRETE VA EMISSION IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. VA EMISSION IS EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260923/2325Z=