Semeru Volcano Volcanic Ash Advisory: VA TO FL150 LAST REPORTED AT 04/2255Z EST VA DTG: 05/0450Z to 15000 ft (4600 m)

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 04:39 UTC, 05/01/26 from ADRM
VA ADVISORY
DTG: 20260105/0510Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/17
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 04/2255Z
EST VA DTG: 05/0450Z
EST VA CLD: SFC/FL150 S0812 E11300 – S0809 E11247 – S0752
E11244 – S0748 E11256 – S0751 E11304 – S0801 E11309 MOV N
05KT
FCST VA CLD +6 HR: 05/1050Z SFC/FL150 S0812 E11300 – S0809
E11247 – S0753 E11246 – S0748 E11301 – S0801 E11309
FCST VA CLD +12 HR: 05/1650Z SFC/FL150 S0812 E11251 – S0806
E11245 – S0753 E11246 – S0749 E11301 – S0802 E11309 – S0811
E11301
FCST VA CLD +18 HR: 05/2250Z SFC/FL150 S0812 E11300 – S0809
E11247 – S0753 E11245 – S0748 E11301 – S0801 E11309
RMK: VA NOT IDENTIFIABLE ON RECENT SAT IMG DUE TO MET CLOUD.
GND REPORTS INDICATE INTERMITTENT DISCRETE EMISSIONS ARE
ONGOING. VA HEIGHT AND MOVEMENT BASED ON GND REPORTS AND
MODEL GUIDANCE. LOW CONFIDENCE IN FCST DUE TO LIGHT AND VRB
WINDS.
NXT ADVISORY: NO LATER THAN 20260105/1110Z=