Occasional volcanic ash emissions were observed at Santiaguito. The latest advisory was issued by the Washington VAAC on 24 September 2026 at 14:10 UTC, with forecasts indicating continued ash movement generally west-southwest.Original VAAC bulletin:FVXX22 at 14:12 UTC, 24/09/26 from KNESVA ADVISORYDTG: 20260924/1410ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/576INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: OCNL VA EMSEST VA DTG: 24/1340ZEST VA CLD: SFC/FL130 N1446 W09132 - N1445 W09132- N1442 W09137 - N1444 W09138 - N1446 W09132 MOVW 5KT FCST VA CLD +6HR: 24/1930Z SFC/FL130 N1446 W09141- N1446 W09133 - N1445 W09132 - N1442 W09140 -N1446 W09141 FCST VA CLD +12HR: 25/0130Z SFC/FL130 N1449W09140 - N1446 W09132 - N1444 W09132 - N1445W09140 - N1449 W09140 FCST VA CLD +18HR: 25/0730Z SFC/FL130 N1446W09132 - N1445 W09132 - N1441 W09138 - N1444W09140 - N1446 W09132 RMK: OCNL VA EMS SEEN ON WEBCAM. STLT IMG OBSC BYWX CLDS. NWP MDLS FCST GEN WSW MVMT THRU T+18. ...BUTLERNXT ADVISORY: WILL BE ISSUED BY 20260924/2015Z