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 10 kts in N direction. Original VAAC bulletin:
FVAU03 at 13:26 UTC, 25/08/26 from ADRM VA ADVISORY DTG: 20260825/1340Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N0129 E12738 AREA: INDONESIA SOURCE ELEV: 1325M AMSL ADVISORY NR: 2026/963 INFO SOURCE: HIMAWARI-9, CVGHM ERUPTION DETAILS: VA TO FL070 OBS AT 25/1320Z OBS VA DTG: 25/1320Z OBS VA CLD: SFC/FL070 N0126 E12740 - N0127 E12735 - N0146 E12730 - N0155 E12744 - N0142 E12752 MOV N 10KT FCST VA CLD +6 HR: 25/1920Z SFC/FL070 N0127 E12741 - N0127 E12734 - N0146 E12728 - N0156 E12740 - N0148 E12751 FCST VA CLD +12 HR: 26/0120Z SFC/FL070 N0126 E12740 - N0127 E12734 - N0153 E12732 - N0200 E12748 - N0149 E12756 FCST VA CLD +18 HR: 26/0720Z SFC/FL070 N0126 E12740 - N0127 E12734 - N0154 E12732 - N0201 E12748 - N0149 E12757 RMK: VA ERUPTION OBS ON LATEST SATELLITE IMAGERY. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260825/1940Z=
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
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
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=
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
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:
FVAU01 at 16:38 UTC, 22/08/26 from ADRM VA ADVISORY DTG: 20260822/1640Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N0142 E12754 AREA: INDONESIA SOURCE ELEV: 1229M AMSL ADVISORY NR: 2026/658 INFO SOURCE: HIMAWARI-9 ERUPTION DETAILS: VA TO FL080 MOV SE AT 22/1620Z OBS VA DTG: 22/1620Z OBS VA CLD: SFC/FL080 N0135 E12751 - N0152 E12750 - N0214 E12811 - N0206 E12840 - N0151 E12852 - N0127 E12848 - N0121 E12831 MOV E 05KT FCST VA CLD +6 HR: 22/2220Z SFC/FL080 N0138 E12750 - N0150 E12750 - N0201 E12805 - N0210 E12834 - N0149 E12854 - N0118 E12837 FCST VA CLD +12 HR: 23/0420Z SFC/FL080 N0138 E12745 - N0151 E12746 - N0214 E12833 - N0152 E12850 - N0135 E12850 - N0117 E12836 FCST VA CLD +18 HR: 23/1020Z SFC/FL080 N0137 E12749 - N0152 E12748 - N0213 E12830 - N0147 E12855 - N0126 E12844 - N0119 E12837 RMK: VA IDENTIFIABLE ON LATEST VIS SATELLITE IMAGERY. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260822/2240Z=
