The Volcanic Ash Advisory Center (VAAC) Darwin issued the following bulletin.
Original VAAC bulletin:
FVAU02 at 15:00 UTC, 28/10/26 from ADRM
VA ADVISORY
DTG: 20261028/1510Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1233
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: ERUPTION REP FM GND AT 28/1151Z
EST VA DTG: 28/1450Z
EST VA CLD: SFC/FL150 S0804 E11258 - S0824 E11305 - S0834
E11252 - S0822 E11238 - S0803 E11252 MOV S 05KT
FCST VA CLD +6 HR: 28/2050Z SFC/FL150 S0803 E11302 - S0826
E11301 - S0828 E11242 - S0811 E11234 - S0757 E11252
FCST VA CLD +12 HR: 29/0250Z SFC/FL150 S0801 E11259 - S0812
E11300 - S0822 E11236 - S0808 E11224 - S0755 E11234
FCST VA CLD +18 HR: 29/0850Z SFC/FL150 S0805 E11303 - S0814
E11255 - S0810 E11234 - S0754 E11235 - S0749 E11249 - S0749
E11249
RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO
MET CLOUD. REGULAR GROUND REPORTS INDICATE INTERMITTENT
ERUPTIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261028/2110Z=