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 11:20 UTC, 30/09/26 from ADRM
VA ADVISORY
DTG: 20260930/1120Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1119
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 REPORTED AT 30/0102Z MOV NE
EST VA DTG: 30/1100Z
EST VA CLD: SFC/FL150 S0806 E11250 - S0745 E11304 - S0751
E11322 - S0811 E11319 - S0812 E11254 MOV NE 05KT
FCST VA CLD +6 HR: 30/1700Z SFC/FL150 S0806 E11250 - S0747
E11307 - S0755 E11323 - S0814 E11318 - S0812 E11254
FCST VA CLD +12 HR: 30/2300Z SFC/FL150 S0806 E11249 - S0742
E11257 - S0745 E11317 - S0805 E11319 - S0812 E11254
FCST VA CLD +18 HR: 01/0500Z SFC/FL150 S0806 E11249 - S0742
E11257 - S0742 E11314 - S0800 E11319 - S0812 E11254
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD. GROUND REPORTS INDICATE INTERMITTENT ERUPTIONS ARE
ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260930/1720Z=