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 01:44 UTC, 22/05/26 from ADRM
VA ADVISORY
DTG: 20260522/0150Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/578
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 21/1950Z MOV SE
EST VA DTG: 22/0120Z
EST VA CLD: SFC/FL150 S0820 E11246 – S0804 E11237 – S0751
E11239 – S0748 E11252 – S0748 E11308 – S0800 E11317 – S0818
E11315 MOV W 05KT
FCST VA CLD +6 HR: 22/0720Z SFC/FL150 S0814 E11247 – S0755
E11230 – S0738 E11241 – S0741 E11314 – S0759 E11314 – S0813
E11304
FCST VA CLD +12 HR: 22/1320Z SFC/FL150 S0812 E11305 – S0818
E11254 – S0801 E11229 – S0738 E11240 – S0742 E11311
FCST VA CLD +18 HR: 22/1920Z SFC/FL150 S0814 E11248 – S0755
E11230 – S0738 E11241 – S0742 E11311 – S0813 E11304
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD OBSCURATION. VA HEIGHT AND MOVEMENT BASED ON
HIMAWARI-9 SATELLITE IMAGERY, GROUND REPORT 21/2147Z AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260522/0750Z=