A possible volcanic ash emission was observed at Sangay, but no ash plume height was reported as of the latest advisory on October 21, 2026, at 22:53 UTC. Forecasts indicate potential ash movement northwest, with no ash expected after October 22, 2026, at 16:30 UTC.Original VAAC bulletin:FVXX23 at 22:55 UTC, 21/10/26 from KNESVA ADVISORYDTG: 20261021/2253ZVAAC: WASHINGTONVOLCANO: SANGAY 352090PSN: S0200 W07820AREA: ECUADORSOURCE ELEV: 17342 FT AMSLADVISORY NR: 2026/701INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: PSBL VA EMEST VA DTG: 21/2230ZEST VA CLD: SFC/FL210 S0152 W07825 - S0159 W07820- S0201 W07820 - S0156 W07829 - S0152 W07825 MOVNW 10KT FCST VA CLD +6HR: 22/0430Z SFC/FL210 S0147 W07831- S0200 W07820 - S0201 W07820 - S0156 W07837 -S0147 W07831 FCST VA CLD +12HR: 22/1030Z SFC/FL210 S0154W07832 - S0159 W07820 - S0201 W07820 - S0202W07834 - S0154 W07832 FCST VA CLD +18HR: 22/1630Z NO VA EXPRMK: PSBL VA EM OBS IN STLT IMAGERY MOVG NW FMSUMMIT BUT LOW CONF. WEBCAM OBSCD BY WX CLDS. VAFCST THRU T+12 HRS BASED ON NWP MDL GUIDANCE....COVERDALENXT ADVISORY: WILL BE ISSUED BY 20261022/0500Z