Ongoing volcanic ash emissions are reported at Reventador, but no ash plume height was observed due to weather clouds as of November 9, 2026, 17:55 UTC. Forecasts indicate continued ash presence at flight level FL140 over the next 18 hours.Original VAAC bulletin:FVXX21 at 17:59 UTC, 09/11/26 from KNESVA ADVISORYDTG: 20261109/1755ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2026/1189INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMSEST VA DTG: 09/1730ZEST VA CLD: SFC/FL140 N0002 W07755 - S0005 W07739- S0005 W07739 - S0004 W07755 - N0002 W07755 MOVW 15KT FCST VA CLD +6HR: 09/2330Z SFC/FL140 N0003 W07757- S0005 W07739 - S0005 W07739 - S0005 W07756 -N0003 W07757 FCST VA CLD +12HR: 10/0530Z SFC/FL140 N0002W07757 - S0004 W07740 - S0005 W07740 - S0005W07756 - N0002 W07757 FCST VA CLD +18HR: 10/1130Z SFC/FL140 N0002W07756 - S0004 W07740 - S0005 W07740 - S0005W07756 - N0002 W07756 RMK: VA NOT DETECTED ON STLT DUE TO WX CLDS INSUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECENTACTVTY. NO CHG FCST TO MDL WINDS AT FL NXT 18 HR....KONONNXT ADVISORY: WILL BE ISSUED BY 20261110/0000Z