FVXX21 KNES 101220 VA ADVISORY DTG: 20211210/1220Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1135 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA LIKELY WSW OF SUMMIT OBS VA DTG: 10/1150Z OBS VA CLD: SFC/FL150 S0004 W07740 - S0007 W07738 - S0014 W07752 - S0008 W07756 - S0004 W07740 MOV SW 10KT FCST VA CLD +6HR: 10/1800Z SFC/FL150 S0003 W07740 - S0007 W07738 - S0019 W07755 - S0008 W07759 - S0003 W07740 FCST VA CLD +12HR: 11/0000Z NO VA EXP FCST VA CLD +18HR: 11/0600Z NO VA EXP RMK: PSBL LIGHT VA EMS TOWARDS THE WSW BASED ON STLT IMAGERY. WX CLDS OBSC WEBCAM. VA FCST THRU T+6 HRS BASED ON NWP MDLS AND PREVIOUS VAA. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20211210/1815Z