Sabancaya Volcanic Ash Advisory: ash plume to 22,000 ft (6,700 m) as of Sep 20, 17:10 UTC

Satellite image of Sabancaya volcano on 20 Sep 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Buenos Aires warned of a volcanic ash plume rising to an estimated 22000 ft (6700 m), or flight level 220, and moving at 15 kts in NE direction.
Original VAAC bulletin:

FVAG01 at 17:35 UTC, 20/09/26 from SABM
VA ADVISORY
DTG: 20260920/1740Z

VAAC: BUENOS AIRES

VOLCANO: SABANCAYA 354006
PSN: S1547 W07150

AREA: PERU

SUMMIT ELEV: 19576 FT [5967 M]

ADVISORY NR: 2026/509

INFO SOURCE: GOES-E. GFS. WEBCAM.

AVIATION COLOUR CODE: NOT GIVEN

ERUPTION DETAILS: ISOLATED PUFF

OBS VA DTG: 20/1710Z

OBS VA CLD: SFC/FL220 S1528 W07143 - S1532 W07136
- S1547 W07150 - S1528 W07143 MOV NE 15KT

FCST VA CLD +6 HR: 20/2310Z SFC/FL220 S1510 W07114
- S1519 W07100 - S1534 W07059 - S1547 W07151 -
S1510 W07114

FCST VA CLD +12 HR: 21/0510Z NO VA EXP

FCST VA CLD +18 HR: 21/1110Z NO VA EXP

RMK: VA PULSE IS DETECTED IN SATELLITE IMAGERY
MOV NNE. FL IS ESTIMATED WITH GFS MODEL...SMN

NXT ADVISORY: WILL BE ISSUED BY 20260920/2340Z=

Sangay Volcanic Ash Advisory: ash plume to 21,000 ft (6,400 m) as of Sep 20, 12:20 UTC

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 21000 ft (6400 m), or flight level 210, and moving at 5 kts in S direction.
Original VAAC bulletin:

FVXX25 at 13:01 UTC, 20/09/26 from KNES
VA ADVISORY
DTG: 20260920/1300Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SOURCE ELEV: 17342 FT AMSL

ADVISORY NR: 2026/584

INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS.

ERUPTION DETAILS: VA EMS OBS

OBS VA DTG: 20/1220Z

OBS VA CLD: SFC/FL210 S0159 W07821 - S0159 W07820
- S0211 W07819 - S0213 W07823 - S0210 W07827 -
S0200 W07824 - S0159 W07821 MOV S 5KT

FCST VA CLD +6HR: 20/1830Z SFC/FL210 S0159 W07820
- S0201 W07819 - S0216 W07838 - S0210 W07845 -
S0159 W07820

FCST VA CLD +12HR: 21/0030Z SFC/FL210 S0143
W07831 - S0201 W07820 - S0201 W07821 - S0151
W07841 - S0143 W07831

FCST VA CLD +18HR: 21/0630Z SFC/FL210 S0146
W07836 - S0200 W07820 - S0201 W07820 - S0156
W07843 - S0146 W07836

RMK: VA EMS OBSD IN WEBCAM AND STLT IMG EXTG
APPRX 15 NM SSW FM SUMMIT. SSW MVMT EXP TO SHIFT
MORE SW BY T+6 HRS AND NW BY T+12 HRS. MVMT AND
HGT BASED ON VONA, WEBCAM OBS AND NWP MDLS.
...BERTALAN

NXT ADVISORY: WILL BE ISSUED BY 20260920/1900Z

Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Sep 20, 09:20 UTC

Satellite image of Semeru volcano on 20 Sep 2026

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 09:40 UTC, 20/09/26 from ADRM
VA ADVISORY
DTG: 20260920/0950Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1077
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA EMISSION OBS AT 20/1920Z MOV E
OBS VA DTG: 20/0920Z
OBS VA CLD: SFC/FL150 S0804 E11252 - S0758 E11319 - S0805
E11325 - S0813 E11320 - S0809 E11253 MOV E 15KT
FCST VA CLD +6 HR: 20/1520Z SFC/FL150 S0804 E11253 - S0755
E11319 - S0805 E11325 - S0815 E11319 - S0809 E11253
FCST VA CLD +12 HR: 20/2120Z SFC/FL150 S0804 E11253 - S0758
E11321 - S0806 E11326 - S0815 E11320 - S0809 E11253
FCST VA CLD +18 HR: 21/0320Z SFC/FL150 S0804 E11253 - S0758
E11320 - S0806 E11325 - S0815 E11319 - S0809 E11253
RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT
AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260920/1550Z=

Lewotolo Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Sep 20, 04:40 UTC

Satellite image of Lewotolo volcano on 20 Sep 2026

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 05 kts in NW direction.
Original VAAC bulletin:

FVAU04 at 05:01 UTC, 20/09/26 from ADRM
VA ADVISORY
DTG: 20260920/0500Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/256
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS 20/0440Z EXT NW
OBS VA DTG: 20/0440Z
OBS VA CLD: SFC/FL070 S0814 E12332 - S0819 E12332 - S0804
E12307 - S0753 E12320 MOV NW 05KT
FCST VA CLD +6 HR: 20/1040Z SFC/FL070 S0814 E12332 - S0819
E12332 - S0815 E12305 - S0756 E12315
FCST VA CLD +12 HR: 20/1640Z SFC/FL070 S0814 E12332 - S0819
E12332 - S0821 E12304 - S0804 E12307
FCST VA CLD +18 HR: 20/2240Z SFC/FL070 S0814 E12332 - S0819
E12332 - S0824 E12304 - S0806 E12306 - S0754 E12319
RMK: CONTINUOUS VA IDENTIFIABLE ON SATELLITE IMAGERY. HEIGHT
AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260920/1100Z=

Sakurajima Volcano Volcanic Ash Advisory: ERUPTED AT 20260920/0038Z FL090 EXTD SW OBS VA DTG: 20/0030Z

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

FVFE01 at 00:49 UTC, 20/09/26 from RJTD
VA ADVISORY
DTG: 20260920/0049Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2026/205
INFO SOURCE: JMA HIMAWARI-9
ERUPTION DETAILS: ERUPTED AT 20260920/0038Z FL090 EXTD SW
OBS VA DTG: 20/0030Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 020/19KT

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=