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.
Original VAAC bulletin:
FVXX20 at 04:44 UTC, 21/08/26 from KNES
VA ADVISORY
DTG: 20260821/0442Z
VAAC: WASHINGTON
VOLCANO: FUEGO 342090
PSN: N1428 W09052
AREA: GUATEMALA
SOURCE ELEV: 12346 FT AMSL
ADVISORY NR: 2026/978
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: FREQUENT VA EMS
OBS VA DTG: 21/0410Z
OBS VA CLD: SFC/FL140 N1428 W09052 - N1428 W09052
- N1425 W09110 - N1428 W09110 - N1428 W09052 MOV
W 25KT
FCST VA CLD +6HR: 21/1000Z SFC/FL140 N1430 W09110
- N1428 W09052 - N1428 W09052 - N1427 W09110 -
N1430 W09110
FCST VA CLD +12HR: 21/1600Z SFC/FL140 N1432
W09107 - N1428 W09053 - N1428 W09052 - N1429
W09108 - N1432 W09107
FCST VA CLD +18HR: 21/2200Z SFC/FL140 N1428
W09052 - N1428 W09052 - N1422 W09105 - N1425
W09107 - N1428 W09052
RMK: VA EMS OBS IN WEBCAM AND STLT IMG EXT APRX
20NM W FM SUMMIT. A GEN W MVMT EXP THRU T+18.
FCST BASED ON STLT AND MDL WINDS. ...GATLING
NXT ADVISORY: WILL BE ISSUED BY 20260821/1045Z