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:
FVXX21 at 09:56 UTC, 17/08/26 from KNES
VA ADVISORY
DTG: 20260817/0954Z
VAAC: WASHINGTON
VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133
AREA: GUATEMALA
SOURCE ELEV: 12287 FT AMSL
ADVISORY NR: 2026/485
INFO SOURCE: GOES-19. NWP MODELS.
ERUPTION DETAILS: SML VA EMS
OBS VA DTG: 17/0920Z
OBS VA CLD: SFC/FL140 N1448 W09152 - N1446 W09132
- N1445 W09132 - N1446 W09153 - N1448 W09152 MOV
W 20KT
FCST VA CLD +6HR: 17/1530Z SFC/FL140 N1449 W09152
- N1446 W09133 - N1445 W09132 - N1446 W09153 -
N1449 W09152
FCST VA CLD +12HR: 17/2130Z NO VA EXP
FCST VA CLD +18HR: 18/0330Z NO VA EXP
RMK: VA EMS OBS IN STLT IMG EXT APRX 20NM W FM
SUMMIT. W MVMT EXP THRU T+6. FCST BASED ON STLT
AND MDL WINDS. ...GATLING
NXT ADVISORY: WILL BE ISSUED BY 20260817/1600Z