Possible volcanic ash emissions were reported for Santiaguito, but no ash plume height was observed as of the latest bulletin. Forecasts indicate potential ash movement to the northeast and then southeast.Original VAAC bulletin:FVXX22 at 03:58 UTC, 20/09/26 from KNESVA ADVISORYDTG: 20260920/0355ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/558INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: LIKELY VA EMS EST VA DTG: 20/0320ZEST VA CLD: SFC/FL140 N1452 W09129 - N1446 W09125- N1444 W09133 - N1445 W09134 - N1452 W09129 MOVNE 5KT FCST VA CLD +6HR: 20/0930Z SFC/FL140 N1453 W09118- N1447 W09116 - N1444 W09134 - N1446 W09134 -N1453 W09118 FCST VA CLD +12HR: 20/1530Z SFC/FL140 N1446W09133 - N1441 W09119 - N1436 W09122 - N1444W09134 - N1446 W09133 FCST VA CLD +18HR: 20/2130Z NO VA EXPRMK: VA EMS NOT CRNTLY OBS ON STLT OR WEBCAM DUETO WX CLD CVR. VOLC ACTIVITY OBS ON WEBCAM PRIORTO CLD CVR. VA MVMT TWD THE NE EXP THRU T+6 THENMORE SE BY T+12 ACCORDING TO NWP MDLS. ...EVANSNXT ADVISORY: WILL BE ISSUED BY 20260920/1000Z