FVXX24 KNES 170438 VA ADVISORY DTG: 20201217/0438Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2020/1118 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE VA EM OBS VA DTG: 17/0410Z OBS VA CLD: SFC/FL150 S0003 W07746 - S0005 W07740 - S0005 W07740 - S0006 W07746 - S0003 W07746 MOV W 10KT FCST VA CLD +6HR: 17/1000Z SFC/FL150 S0002 W07745 - S0005 W07740 - S0005 W07740 - S0005 W07746 - S0002 W07745 FCST VA CLD +12HR: 17/1600Z SFC/FL150 S0003 W07744 - S0004 W07740 - S0005 W07739 - S0005 W07744 - S0003 W07744 FCST VA CLD +18HR: 17/2200Z NO VA EXP RMK: VA EM NOT SEEN ON STLT IMAGERY DUE TO MET CLD OBSCURATION. HOWEVER, WEB CAM SHOWS EMS WHICH MAY CONTAIN VA. HEIGHT AND FRCST BASED ON MODEL GUIDANCE. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20201217/1045Z