Continuous volcanic ash emissions were observed at Santiaguito, with ash moving east at 5 knots as of 24 October 2026, 13:20 UTC. Forecasts indicate ash may continue moving west through the next 18 hours.Original VAAC bulletin:FVXX23 at 13:57 UTC, 24/10/26 from KNESVA ADVISORYDTG: 20261024/1354ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/616INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBSEST VA DTG: 24/1320ZEST VA CLD: SFC/FL150 N1449 W09115 - N1443 W09114- N1446 W09132 - N1449 W09115 MOV E 5KT FCST VA CLD +6HR: 24/1930Z SFC/FL150 N1447 W09115- N1443 W09115 - N1446 W09133 - N1447 W09115 FCST VA CLD +12HR: 25/0130Z SFC/FL150 N1454W09120 - N1449 W09116 - N1446 W09133 - N1454W09120 FCST VA CLD +18HR: 25/0730Z SFC/FL150 N1459W09125 - N1455 W09120 - N1446 W09133 - N1459W09125 RMK: CONT VA EMS OBS IN WEBCAM. VA NOT OBS INSTLT IMAGERY DUE TO WX CLDS. CONT VA FCST TO CONTW MOV THRU T+18HRS BEFORE DISP. VO ACT LOW. ...FISHERNXT ADVISORY: WILL BE ISSUED BY 20261024/2000Z