Satellite image of Semeru volcano on 21 Mar 2026Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .The full report is as follows:FVAU02 at 22:46 UTC, 21/03/26 from ADRMVA ADVISORYDTG: 20260321/2250ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/329INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 LAST REP AT 21/1127ZEST VA DTG: 21/2230ZEST VA CLD: SFC/FL150 S0825 E11258 - S0817 E11233 - S0750 E11233 - S0741 E11258 - S0751 E11319 - S0819 E11319 MOV N 05KTFCST VA CLD +6 HR: 22/0430Z SFC/FL150 S0828 E11256 - S0824 E11235 - S0759 E11232 - S0743 E11251 - S0748 E11319 - S0822 E11319FCST VA CLD +12 HR: 22/1030Z SFC/FL150 S0744 E11254 - S0748 E11319 - S0816 E11322 - S0829 E11256 - S0823 E11236 - S0800 E11232FCST VA CLD +18 HR: 22/1630Z SFC/FL150 S0822 E11301 - S0818 E11232 - S0749 E11234 - S0738 E11257 - S0744 E11319 - S0816 E11322RMK: VA NOT IDENTIFIABLE ON LATEST SAT IMAGERY DUE TO MET CLOUD. INTERMITTENT DISCRETE VA EMISSIONS EXPECTED TO BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON HIMAWARI-9, GROUND REPORT AND MODEL GUIDANCE. LOW CONFIDENCE IN FORECAST DUE TO LIGHT AND VARIABLE WINDS.NXT ADVISORY: NO LATER THAN 20260322/0450Z=