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Ongoing volcanic ash emissions are reported at Reventador. No observed ash plume height is available; forecasts indicate ash may reach up to FL140 and move west as of August 16, 2026, 16:30 UTC.

Original VAAC bulletin:

FVXX22 at 16:55 UTC, 16/08/26 from KNES
VA ADVISORY
DTG: 20260816/1653Z

VAAC: WASHINGTON

VOLCANO: REVENTADOR 352010
PSN: S0004 W07739

AREA: ECUADOR

SOURCE ELEV: 11686 FT AMSL

ADVISORY NR: 2026/832

INFO SOURCE: GOES-19. NWP MODELS. 

ERUPTION DETAILS: ONGOING VA EMS

EST VA DTG: 16/1630Z

EST VA CLD: SFC/FL140 N0001 W07756 - S0004 W07740
- S0005 W07739 - S0006 W07756 - N0001 W07756 MOV
W 10KT 

FCST VA CLD +6HR: 16/2230Z SFC/FL140 N0002 W07759
- S0004 W07740 - S0005 W07740 - S0007 W07758 -
N0002 W07759 

FCST VA CLD +12HR: 17/0430Z SFC/FL140 N0005
W07758 - S0004 W07739 - S0005 W07740 - S0002
W07759 - N0005 W07758 

FCST VA CLD +18HR: 17/1030Z SFC/FL140 N0006
W07758 - S0004 W07739 - S0005 W07740 - S0002
W07759 - N0006 W07758 

RMK: VA NOT DETECTED ON STLT DUE TO WX CLDS IN
SUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECENT
ACTVTY. MDL WINDS AT FL FCST TO VEER BY T+12 HR
BECMG MORE FM THE ESE. ...KONON

NXT ADVISORY: WILL BE ISSUED BY 20260816/2300Z

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 5000 ft (1500 m), or flight level 050.

Original VAAC bulletin:

FVAU05 at 13:55 UTC, 16/08/26 from ADRM
VA ADVISORY
DTG: 20260816/1400Z
VAAC: DARWIN
VOLCANO: KRAKATAU 262000
PSN: S0606 E10525
AREA: INDONESIA
SOURCE ELEV: 155M AMSL
ADVISORY NR: 2026/109
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL050 OBS AT 16/1340Z MOV NW
OBS VA DTG: 16/1340Z
OBS VA CLD: SFC/FL050 S0617 E10532 - S0624 E10501 - S0549
 E10501 - S0537 E10533 - S0606 E10538 MOV NW 05KT
FCST VA CLD +6 HR: 16/1940Z SFC/FL050 S0612 E10535 - S0624
 E10502 - S0555 E10458 - S0537 E10518 - S0542 E10546
FCST VA CLD +12 HR: 17/0140Z SFC/FL050 S0612 E10535 - S0624
 E10501 - S0552 E10500 - S0536 E10525 - S0546 E10554
FCST VA CLD +18 HR: 17/0740Z SFC/FL050 S0612 E10535 - S0624
 E10501 - S0600 E10457 - S0540 E10511 - S0538 E10538
RMK: VA PARTIALLY IDENTIFIABLE ON SATELLITE IMAGERY AMONG
 MET CLOUD. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
 GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260816/2000Z=

Satellite image of Dukono volcano on 16 Aug 2026

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 10:17 UTC, 16/08/26 from ADRM
VA ADVISORY
DTG: 20260816/1020Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/632
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL080 OBS AT 16/0400Z MOV SE
EST VA DTG: 16/1000Z
EST VA CLD: SFC/FL080 N0149 E12755 - N0135 E12828 - N0112
 E12827 - N0109 E12806 - N0141 E12746 MOV SE 05KT
FCST VA CLD +6 HR: 16/1600Z SFC/FL080 N0149 E12755 - N0123
 E12824 - N0103 E12815 - N0107 E12752 - N0141 E12746
FCST VA CLD +12 HR: 16/2200Z SFC/FL080 N0149 E12755 - N0123
 E12824 - N0105 E12817 - N0107 E12755 - N0141 E12746
FCST VA CLD +18 HR: 17/0400Z SFC/FL080 N0149 E12755 - N0141
 E12828 - N0123 E12831 - N0114 E12814 - N0141 E12746
RMK: VA NOT IDENTIFIABLE ON CURRENT SAT IMG DUE TO MET
 CLOUD. EMISSIONS EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT
 BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260816/1620Z=

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150.

Original VAAC bulletin:

FVXX20 at 05:26 UTC, 16/08/26 from KNES
VA ADVISORY
DTG: 20260816/0524Z

VAAC: WASHINGTON

VOLCANO: FUEGO 342090
PSN: N1428 W09052

AREA: GUATEMALA

SOURCE ELEV: 12346 FT AMSL

ADVISORY NR: 2026/956

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

ERUPTION DETAILS: ONGOING VA EMS

OBS VA DTG: 16/0450Z

OBS VA CLD: SFC/FL150 N1428 W09052 - N1428 W09052
- N1409 W09129 - N1413 W09133 - N1428 W09052 MOV
SW 20KT 

FCST VA CLD +6HR: 16/1100Z SFC/FL150 N1428 W09053
- N1428 W09052 - N1418 W09135 - N1423 W09135 -
N1428 W09053 

FCST VA CLD +12HR: 16/1700Z SFC/FL150 N1428
W09053 - N1427 W09052 - N1411 W09132 - N1416
W09134 - N1428 W09053 

FCST VA CLD +18HR: 16/2300Z SFC/FL150 N1428
W09053 - N1428 W09052 - N1411 W09132 - N1416
W09134 - N1428 W09053 

RMK: FREQUENT VA EMS OBS IN WEBCAM AND STLT IMG
EXT APRX 40NM SW FM SUMMIT. A GEN SW MVMT EXP
THRU T+18. FCST BASED ON STLT AND MDL WINDS.
...GATLING

NXT ADVISORY: WILL BE ISSUED BY 20260816/1130Z