Possible volcanic ash emissions were observed on webcam and satellite imagery as of 03 November 2026 at 04:20 UTC. Forecasts indicate ash may persist up to 18 hours from the advisory time.Original VAAC bulletin:FVXX21 at 05:00 UTC, 03/11/26 from KNESVA ADVISORYDTG: 20261103/0457ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2026/1159INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA IN WEBCAMEST VA DTG: 03/0420ZEST VA CLD: SFC/FL140 N0004 W07755 - S0004 W07740- S0005 W07739 - S0002 W07757 - N0004 W07755 MOVNW 10KT FCST VA CLD +6HR: 03/1030Z SFC/FL140 N0003 W07759- S0004 W07739 - S0005 W07739 - S0005 W07801 -N0003 W07759 FCST VA CLD +12HR: 03/1630Z SFC/FL140 N0003W07756 - S0004 W07739 - S0005 W07739 - S0003W07758 - N0003 W07756 FCST VA CLD +18HR: 03/2230Z SFC/FL140 N0001W07756 - S0004 W07739 - S0005 W07739 - S0005W07758 - N0001 W07756 RMK: PSBL VA EMS OBS IN STLT IMAGERY. OCNL VA EMSSEEN IN WEBCAM. VA FCST THRU T+18 HRS BASED ONNWP MDL GUIDANCE. ...COVERDALENXT ADVISORY: WILL BE ISSUED BY 20261103/1100Z