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:
FVXX23 at 05:12 UTC, 31/10/26 from KNES
VA ADVISORY
DTG: 20261031/0509Z
VAAC: WASHINGTON
VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133
AREA: GUATEMALA
SOURCE ELEV: 12287 FT AMSL
ADVISORY NR: 2026/641
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: ONGOING VA EMS
OBS VA DTG: 31/0440Z
OBS VA CLD: SFC/FL140 N1446 W09136 - N1445 W09132
- N1444 W09132 - N1443 W09135 - N1446 W09136 MOV
W 10KT
FCST VA CLD +6HR: 31/1030Z SFC/FL140 N1446 W09141
- N1446 W09133 - N1445 W09132 - N1441 W09140 -
N1446 W09141
FCST VA CLD +12HR: 31/1630Z SFC/FL140 N1446
W09141 - N1446 W09133 - N1445 W09132 - N1441
W09140 - N1446 W09141
FCST VA CLD +18HR: 31/2230Z SFC/FL140 N1446
W09132 - N1445 W09133 - N1441 W09140 - N1446
W09141 - N1446 W09132
RMK: VA DETECTED ON STLT MOVG WSW OF SUMMIT.
WEBCAM SHOWS VA EMS. NO CHG FCST TO MDL WINDS AT
FL NXT 18 HR. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20261031/1115Z