Explosive 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 01:49 UTC, 21/05/26 from ADRMVA ADVISORYDTG: 20260521/0150ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/574INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 MOV SEOBS VA DTG: 21/0120ZOBS VA CLD: SFC/FL150 S0805 E11252 - S0802 E11256 - S0838 E11328 - S0847 E11312 - S0847 E11255 MOV SE 05KTFCST VA CLD +6 HR: 21/0720Z SFC/FL150 S0801 E11257 - S0814 E11329 - S0838 E11327 - S0846 E11258 - S0805 E11250FCST VA CLD +12 HR: 21/1320Z SFC/FL150 S0805 E11247 - S0747 E11254 - S0745 E11310 - S0803 E11320 - S0819 E11305FCST VA CLD +18 HR: 21/1920Z SFC/FL150 S0808 E11253 - S0748 E11253 - S0746 E11312 - S0804 E11321 - S0818 E11305RMK: INTERMITTENT DISCRETE VA EMISSION IDENTIFIABLE ON SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260521/0750Z=