Autor: global-affair

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 17000 ft (5200 m), or flight level 170.
Original VAAC bulletin:

FVAU06 at 10:49 UTC, 31/08/26 from ADRM
VA ADVISORY
DTG: 20260831/1050Z
VAAC: DARWIN
VOLCANO: SINABUNG 261080
PSN: N0310 E09824
AREA: INDONESIA
SOURCE ELEV: 2460M AMSL
ADVISORY NR: 2026/5
INFO SOURCE: HIMAWARI-9, CVGHM, WEBCAM
ERUPTION DETAILS: VA OBS TO FL170 OBS AT 31/1020Z MOV E
OBS VA DTG: 31/1030Z
OBS VA CLD: SFC/FL170 N0304 E09817 - N0324 E09817 - N0352
 E09909 - N0331 E10015 - N0241 E09956 MOV E 10KT
FCST VA CLD +6 HR: 31/1630Z SFC/FL170 N0304 E09818 - N0324
 E09816 - N0346 E09907 - N0322 E10012 - N0232 E09952
FCST VA CLD +12 HR: 31/2230Z SFC/FL170 N0305 E09818 - N0324
 E09817 - N0345 E09907 - N0322 E10011 - N0232 E09952
FCST VA CLD +18 HR: 01/0430Z SFC/FL170 N0304 E09817 - N0324
 E09817 - N0344 E09906 - N0322 E10011 - N0232 E09952
RMK: VA HEIGHT AND MOVEMENT BASED ON GROUND REPORT,
 HIMAWARI-9 IMAGERY AND MODEL GUIDANCE. PREVIOUS ADVISORY
 UPDATED DUE TO ERROR IN OBS TIME.
NXT ADVISORY: NO LATER THAN 20260831/1650Z=

The Volcanic Ash Advisory Center (VAAC) Tokyo issued the following bulletin.
Original VAAC bulletin:

FVFE01 at 07:46 UTC, 31/08/26 from RJTD
VA ADVISORY
DTG: 20260831/0746Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2026/181
INFO SOURCE: JMA HIMAWARI-9
ERUPTION DETAILS: ERUPTED AT 20260831/0730Z FL080 EXTD NW
OBS VA DTG: 31/0730Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL080 140/10KT

FCST VA CLD +6 HR: NOT AVBL
FCST VA CLD +12 HR: NOT AVBL
FCST VA CLD +18 HR: NOT AVBL
RMK: VA OF PREVIOUS VAA HAS DISSIPATED IN SATELLITE IMAGERY. NEW 
ERUPTION REPORTED. WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED 
IN SATELLITE IMAGERY.
NXT ADVISORY: NO FURTHER ADVISORIES=

Satellite image of Lewotobi volcano on 31 Aug 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 6000 ft (1800 m), or flight level 060.
Original VAAC bulletin:

FVAU04 at 05:22 UTC, 31/08/26 from ADRM
VA ADVISORY
DTG: 20260831/0521Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/441
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL060 MOV NW
EST VA DTG: 31/0500Z
EST VA CLD: SFC/FL060 S0832 E12247 - S0833 E12248 - S0835
 E12239 - S0831 E12237 - S0825 E12241 MOV NW 10KT
FCST VA CLD +6 HR: 31/1100Z NO VA EXP
FCST VA CLD +12 HR: 31/1700Z NO VA EXP
FCST VA CLD +18 HR: 31/2300Z NO VA EXP
RMK: CVGHM REPORTED ERUPTION TO 300M ABOVE SUMMIT. VA NOT
 IDENTIFIABLE ON SATELLITE IMAGERY. HEIGHT BASED ON GROUND
 REPORT. VA EXPECTED TO DISSIPATE WITH 3-6 HRS.
NXT ADVISORY: NO LATER THAN 20260831/1121Z=