Possible volcanic ash emissions were reported for Santiaguito, but no ash plume or height was observed as of the latest advisory on August 29, 2026, at 20:42 UTC. Forecasts indicate potential movement of ash to the west and southwest, but no ash is expected after August 30, 2026, at 08:00 UTC.Original VAAC bulletin:FVXX22 at 20:45 UTC, 29/08/26 from KNESVA ADVISORYDTG: 20260829/2042ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/492INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: PSBL VA EMSEST VA DTG: 29/2010ZEST VA CLD: SFC/FL130 N1447 W09146 - N1447 W09133- N1445 W09133 - N1441 W09145 - N1447 W09146 MOVW 15KT FCST VA CLD +6HR: 30/0200Z SFC/FL130 N1446 W09132- N1445 W09132 - N1437 W09146 - N1443 W09150 -N1446 W09132 FCST VA CLD +12HR: 30/0800Z NO VA EXPFCST VA CLD +18HR: 30/1400Z NO VA EXPRMK: VA EMS NOT OBSD IN STLT IMG PSBLY DUE TO METCLDS. VA EMS MAY BE OBSCD. W MVMT EXP TO SHIFTSW BY T+6 HRS. MVMT AND HGT BASED ON NWP MDLS....BERTALANNXT ADVISORY: WILL BE ISSUED BY 20260830/0245Z