FVXX23 KNES 202035 VA ADVISORY DTG: 20211220/2035Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1162 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSS VA EMS OBS VA DTG: 20/2010Z OBS VA CLD: SFC/FL150 S0000 W07755 - S0003 W07740 - S0005 W07738 - S0009 W07755 - S0000 W07755 MOV W 150KT FCST VA CLD +6HR: 21/0200Z NO VA EXP FCST VA CLD +12HR: 21/0800Z NO VA EXP FCST VA CLD +18HR: 21/1400Z NO VA EXP RMK: POSS VA EMS MOVG W FM SUMMIT. VA NOT OBS IN SAT DATA DUE TO WX CLDS WEST OF SUMMIT. NWP MDLS FCST VA TO MOV W FM SUMMIT. ...TUGGLE NXT ADVISORY: WILL BE ISSUED BY 20211221/0230Z