A volcanic ash emission was reported at Reventador, but no ash plume height was observed or specified as of the latest advisory. Forecasts indicate possible ash movement, but confidence is low due to limited satellite observation.Original VAAC bulletin:FVXX21 at 02:32 UTC, 20/10/26 from KNESVA ADVISORYDTG: 20261020/0218ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2026/1098INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS.GEOPHYSICAL INST. ERUPTION DETAILS: VA EM REPORTEDEST VA DTG: 19/2150ZEST VA CLD: SFC/FL165 S0004 W07740 - S0005 W07738- S0019 W07747 - S0013 W07752 - S0004 W07740 MOVSW 5KT FCST VA CLD +6HR: 20/0400Z SFC/FL165 S0004 W07739- S0005 W07738 - S0018 W07746 - S0007 W07754 -S0004 W07739 FCST VA CLD +12HR: 20/1000Z SFC/FL165 S0001W07755 - S0004 W07738 - S0006 W07738 - S0016W07751 - S0001 W07755 FCST VA CLD +18HR: 20/1600Z SFC/FL165 S0003W07738 - S0005 W07738 - S0018 W07749 - S0004W07755 - S0003 W07738 RMK: VONA REPORTED AND WEBCAM OBSERVED VA EM. VANOT OBSERVED IN SAT DUE TO MET CLD. VA FL/DIRBASED ON RPRT. MDL DOES NOT AGREE WELL WITH OBS,THUS FCST CONFIDENCE IS LOW. ...ZENGNXT ADVISORY: WILL BE ISSUED BY 20261020/0815Z