Satellite observations reported an ash plume from Santiaguito reaching 13,000 ft (4,000 m) at 06:40 UTC on 11 November 2026. Forecasts indicate possible light and variable movement of ash to the south and southeast through the next 12 hours.Original VAAC bulletin:FVXX25 at 07:07 UTC, 11/11/26 from KNESVA ADVISORYDTG: 20261111/0704ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/675INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: VA EMS OBSOBS VA DTG: 11/0640ZOBS VA CLD: SFC/FL130 N1447 W09149 - N1447 W09132- N1443 W09132 - N1438 W09153 - N1447 W09149 MOVW 5KT FCST VA CLD +6HR: 11/1230Z SFC/FL130 N1446 W09134- N1442 W09121 - N1435 W09125 - N1443 W09140 -N1446 W09134 FCST VA CLD +12HR: 11/1830Z SFC/FL130 N1446W09134 - N1444 W09131 - N1435 W09129 - N1438W09142 - N1446 W09134 FCST VA CLD +18HR: 12/0030Z NO VA EXPRMK: VA EMS OBS IN STLT IMG FANNING OUT TO THE WUP TO APPRX 20NM FM SUMMIT. NWP MDL GUIDANCEFCSTS LGT AND VARIABLE MOVMT GEN TO THE S TO SETHRU T+12. HGT BASED ON MOVMT AND NWP MDLS....MONAGHANNXT ADVISORY: WILL BE ISSUED BY 20261111/1300Z