Continuous volcanic ash emissions were reported at Santiaguito, with ash estimated to be moving west at 10 knots as of 31 October 2026, 16:40 UTC. Ash was not observed in satellite imagery due to weather clouds; forecasts indicate possible continued movement west to west-southwest for up to 12 hours.Original VAAC bulletin:FVXX23 at 17:13 UTC, 31/10/26 from KNESVA ADVISORYDTG: 20261031/1710ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/643INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMSEST VA DTG: 31/1640ZEST VA CLD: SFC/FL140 N1446 W09132 - N1429 W09207- N1442 W09211 - N1446 W09132 MOV W 10KT FCST VA CLD +6HR: 31/2230Z SFC/FL140 N1446 W09132- N1426 W09207 - N1439 W09212 - N1446 W09132 FCST VA CLD +12HR: 01/0430Z SFC/FL140 N1446W09132 - N1424 W09207 - N1437 W09213 - N1446W09132 FCST VA CLD +18HR: 01/1030Z NO VA EXPRMK: CONT VA EMS PSBL. VA NOT OBS IN STLT IMAGERYDUE TO WX CLDS. PSBL VA FCST TO CONT W TO WSW MOVTHRU T+12HRS BEFORE DISP. VO ACT LOW. ...FISHERNXT ADVISORY: WILL BE ISSUED BY 20261031/2315Z