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:
FVXX22 at 12:18 UTC, 12/09/26 from KNES
VA ADVISORY
DTG: 20260912/1215Z
VAAC: WASHINGTON
VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133
AREA: GUATEMALA
SOURCE ELEV: 12287 FT AMSL
ADVISORY NR: 2026/527
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: CONS VA EMS
OBS VA DTG: 12/1130Z
OBS VA CLD: SFC/FL140 N1456 W09208 - N1446 W09132
- N1444 W09132 - N1447 W09210 - N1456 W09208 MOV
W 15KT
FCST VA CLD +6HR: 12/1730Z SFC/FL140 N1449 W09214
- N1446 W09132 - N1444 W09132 - N1440 W09214 -
N1449 W09214
FCST VA CLD +12HR: 12/2330Z SFC/FL140 N1446
W09132 - N1444 W09132 - N1429 W09209 - N1438
W09213 - N1446 W09132
FCST VA CLD +18HR: 13/0530Z SFC/FL140 N1449
W09214 - N1446 W09132 - N1444 W09132 - N1440
W09214 - N1449 W09214
RMK: VA EMS OBSD IN WEBCAM AND STLT IMG EXTG
APPRX 40 NM WNW FM SUMMIT. WNW MVMT EXP TO SHIFT
MORE W BY T+6 HRS, AND MORE SW BY T+12 HRS. MVMT
AND HGT BASED ON WEBCAM, STLT OBS AND NWP MDLS.
...BERTALAN
NXT ADVISORY: WILL BE ISSUED BY 20260912/1815Z