Volcanic ash emissions were observed on webcam at Santiaguito as of 01:30 UTC on 24 October 2026. Forecasts indicate possible changes in ash cloud movement and altitude over the next 18 hours.Original VAAC bulletin:FVXX23 at 02:01 UTC, 24/10/26 from KNESVA ADVISORYDTG: 20261024/0158ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/614INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS OBSD IN WEBCAMEST VA DTG: 24/0130ZEST VA CLD: SFC/FL150 N1447 W09122 - N1440 W09122- N1444 W09133 - N1446 W09133 - N1447 W09122 MOVE 5KT FCST VA CLD +6HR: 24/0730Z SFC/FL150 N1455 W09123- N1448 W09119 - N1444 W09132 - N1446 W09133 -N1455 W09123 FCST VA CLD +12HR: 24/1330Z SFC/FL150 N1448W09119 - N1440 W09120 - N1445 W09133 - N1446W09133 - N1448 W09119 FCST VA CLD +18HR: 24/1930Z SFC/FL150 N1446W09132 - N1445 W09120 - N1438 W09122 - N1444W09133 - N1446 W09132 RMK: VA EMS VSBL IN WEBCAM BUT NOT OBSD IN STLTIMG DUE TO MET CLDS. E MVMT EXP TO SHIFT NE BYT+6 HRS, AND ESE BY T+18 HRS. MVMT AND HGT BASEDON WEBCAM OBS AND NWP MDLS BUT LGT/VRBL FL WINDSEXP. ...BERTALANNXT ADVISORY: WILL BE ISSUED BY 20261024/0800Z