Ongoing volcanic ash emissions are reported at Santiaguito. Ash was not detected by satellite due to weather clouds, but emissions are likely continuing as of 25 October 2026, 01:20 UTC.Original VAAC bulletin:FVXX23 at 01:48 UTC, 25/10/26 from KNESVA ADVISORYDTG: 20261025/0145ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/618INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMSEST VA DTG: 25/0120ZEST VA CLD: SFC/FL140 N1448 W09127 - N1444 W09127- N1446 W09132 - N1446 W09133 - N1448 W09127 MOVE 5KT FCST VA CLD +6HR: 25/0730Z SFC/FL140 N1446 W09126- N1442 W09126 - N1445 W09132 - N1446 W09132 -N1446 W09126 FCST VA CLD +12HR: 25/1330Z NO VA EXPFCST VA CLD +18HR: 25/1930Z NO VA EXPRMK: VA NOT DETECTED ON STLT DUE TO WX CLDS INSUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECENTACTVTY. MDL WINDS LGT/VRB AT FL SO VA PSN CONFLO. ...KONONNXT ADVISORY: WILL BE ISSUED BY 20261025/0745Z