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Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 14000 ft (4300 m), or flight level 140, and moving at 10 kts in SW direction.
Original VAAC bulletin:

FVXX20 at 05:27 UTC, 23/08/26 from KNES
VA ADVISORY
DTG: 20260823/0525Z

VAAC: WASHINGTON

VOLCANO: FUEGO 342090
PSN: N1428 W09052

AREA: GUATEMALA

SOURCE ELEV: 12346 FT AMSL

ADVISORY NR: 2026/987

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

ERUPTION DETAILS: FREQUENT VA EMS

OBS VA DTG: 23/0450Z

OBS VA CLD: SFC/FL140 N1428 W09052 - N1428 W09052
- N1424 W09052 - N1423 W09057 - N1428 W09056 -
N1428 W09052 MOV SW 10KT

FCST VA CLD +6HR: 23/1100Z SFC/FL140 N1432 W09102
- N1428 W09052 - N1428 W09052 - N1429 W09102 -
N1432 W09102

FCST VA CLD +12HR: 23/1700Z SFC/FL140 N1431
W09102 - N1428 W09052 - N1428 W09052 - N1427
W09102 - N1431 W09102

FCST VA CLD +18HR: 23/2300Z SFC/FL140 N1432
W09102 - N1428 W09052 - N1428 W09053 - N1428
W09102 - N1432 W09102

RMK: VA EMS OBS IN WEBCAM AND STLT IMG EXT APRX
10NM SW FM SUMMIT. W MVMT EXP BY T+6. FCST BASED
ON STLT AND MDL WINDS. FCST CONFIDENCE LOW.
...GATLING

NXT ADVISORY: WILL BE ISSUED BY 20260823/1130Z

Satellite image of Krakatau volcano on 23 Aug 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 9000 ft (2700 m), or flight level 090.
Original VAAC bulletin:

FVAU05 at 01:18 UTC, 23/08/26 from ADRM
VA ADVISORY
DTG: 20260823/0127Z
VAAC: DARWIN
VOLCANO: KRAKATAU 262000
PSN: S0606 E10525
AREA: INDONESIA
SOURCE ELEV: 155M AMSL
ADVISORY NR: 2026/127
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL090 OBS AT 23/0100Z, MOV SW
OBS VA DTG: 23/0100Z
OBS VA CLD: SFC/FL090 S0610 E10535 - S0704 E10447 - S0601
 E10411 - S0553 E10525 MOV SW 05KT
FCST VA CLD +6 HR: 23/0700Z SFC/FL090 S0610 E10535 - S0745
 E10530 - S0759 E10438 - S0643 E10320 - S0542 E10356 - S0554
 E10526
FCST VA CLD +12 HR: 23/1300Z SFC/FL090 S0611 E10535 - S0758
 E10449 - S0644 E10318 - S0546 E10320 - S0457 E10406 - S0551
 E10530
FCST VA CLD +18 HR: 23/1900Z SFC/FL090 S0609 E10538 - S0747
 E10507 - S0758 E10406 - S0635 E10257 - S0528 E10310 - S0459
 E10410 - S0551 E10527
RMK: CONTINUOUS VA ERUPTION IDENTIFIABLE ON CURRENT
 SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON HIMAWARI-9
 SATELLITE IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260823/0727Z=

Map of today's active volcanoes

Kanlaon (Central Philippines): An eruption was reported at Kanlaon on 22 August 2026 at 14:56 UTC, but the ash cloud height was unknown as of the latest observation at 15:00 UTC. No volcanic ash was identifiable from satellite data, and forecasts are not available.
Original VAAC bulletin: ash plume height unknown as of 22 Aug 2026, 15:00 UTC

Ibu (Halmahera, Indonesia): 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.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Aug 22, 19:50 UTC

Lewotobi (Flores): 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.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Aug 22, 10:40 UTC

Krakatau (Sunda Strait, Indonesia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 9000 ft (2700 m), or flight level 090.
Original VAAC bulletin: ash plume to 9,000 ft (2,700 m) as of Aug 22, 13:00 UTC

Semeru (East Java, Indonesia): 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: ash plume to 15,000 ft (4,600 m) as of Aug 22, 15:40 UTC

Dukono (Halmahera): 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: ash plume to 8,000 ft (2,400 m) as of Aug 22, 16:20 UTC

Fuego (Guatemala): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 14000 ft (4300 m), or flight level 140, and moving at 10 kts in W direction.
Original VAAC bulletin: ash plume to 14,000 ft (4,300 m) as of Aug 22, 17:00 UTC

Puracé (Colombia): Possible volcanic ash emissions were reported for Puracé, but no ash plume height was observed as of the latest advisory. Forecasts indicate potential northwest movement of ash through 22 August 2026, 16:30 UTC.
Original VAAC bulletin: Puracé Volcanic Ash Advisory

Reventador (Ecuador): Volcanic ash emissions are considered likely at Reventador based on webcam observations as of 22 August 2026, 10:10 UTC. Satellite detection was hindered by weather clouds; model forecasts suggest ash movement toward the northwest.
Original VAAC bulletin: Reventador Volcanic Ash Advisory