Ibu Volcanic Ash Advisory: ash plume to 8,000 ft (2,400 m) as of Sep 13, 21:40 UTC

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 8000 ft (2400 m), or flight level 080.
Original VAAC bulletin:

FVAU03 at 21:59 UTC, 13/09/26 from ADRM
VA ADVISORY
DTG: 20260913/2200Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/1042
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA EMISSION OBS AT 13/2140Z MOV E
OBS VA DTG: 13/2140Z
OBS VA CLD: SFC/FL080 N0127 E12735 - N0131 E12735 - N0146
E12817 - N0133 E12826 - N0120 E12819 MOV E 15KT
FCST VA CLD +6 HR: 14/0340Z SFC/FL080 N0127 E12735 - N0131
E12735 - N0146 E12816 - N0133 E12826 - N0119 E12818
FCST VA CLD +12 HR: 14/0940Z SFC/FL080 N0131 E12735 - N0149
E12812 - N0137 E12824 - N0120 E12818 - N0126 E12735
FCST VA CLD +18 HR: 14/1540Z SFC/FL080 N0126 E12735 - N0131
E12734 - N0149 E12816 - N0134 E12825 - N0119 E12818
RMK: DISCRETE VA EMISSIONS IDENTIFIABLE ON RECENT SATELLITE
IMAGERY MOVING EAST. VA ERUPTIONS EXPECTED TO BE ONGOING. VA
HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND
REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260914/0400Z=

Sakurajima Volcanic Ash Advisory: no ash plume observed as of 13 Sep 2026, 17:20 UTC

An eruption was reported at Sakurajima at 17:12 UTC on 13 September 2026, but no volcanic ash cloud was identifiable in satellite data as of 17:20 UTC. No further advisories are planned unless ash is detected.
Original VAAC bulletin:

FVFE01 at 17:37 UTC, 13/09/26 from RJTD
VA ADVISORY
DTG: 20260913/1737Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2026/189
INFO SOURCE: JMA HIMAWARI-9
ERUPTION DETAILS: ERUPTED AT 20260913/1712Z FL110 STNR
OBS VA DTG: 13/1720Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL110 120/8KT
FCST VA CLD +6 HR: NOT AVBL
FCST VA CLD +12 HR: NOT AVBL
FCST VA CLD +18 HR: NOT AVBL
RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE
IMAGERY.
NXT ADVISORY: NO FURTHER ADVISORIES=

Lewotolo Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Sep 13, 12:13 UTC

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 20 kts in NW direction.
Original VAAC bulletin:

FVAU06 at 12:13 UTC, 13/09/26 from ADRM
VA ADVISORY
DTG: 20260913/1220Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/228
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 13/0600Z EXTD NW
EST VA DTG: 13/1200Z
EST VA CLD: SFC/FL070 S0816 E12334 - S0820 E12332 - S0756
E12214 - S0727 E12221 - S0725 E12253 MOV NW 20KT
FCST VA CLD +6 HR: 13/1800Z SFC/FL070 S0815 E12334 - S0821
E12331 - S0802 E12212 - S0736 E12215 - S0728 E12243
FCST VA CLD +12 HR: 14/0000Z SFC/FL070 S0813 E12334 - S0820
E12334 - S0829 E12215 - S0804 E12207 - S0747 E12226
FCST VA CLD +18 HR: 14/0600Z SFC/FL070 S0814 E12334 - S0820
E12333 - S0824 E12224 - S0756 E12217 - S0745 E12305
RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO
MET CLOUD. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260913/1820Z=