FVXX23 KNES 312138 VA ADVISORY DTG: 20211231/2138Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1199 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS EXPCD OBS VA DTG: 31/2100Z OBS VA CLD: SFC/FL150 N0004 W07740 - S0004 W07739 - S0005 W07740 - N0004 W07743 - N0004 W07740 MOV N 5KT FCST VA CLD +6HR: 01/0300Z SFC/FL150 N0003 W07739 - S0005 W07739 - S0005 W07740 - N0003 W07741 - N0003 W07739 FCST VA CLD +12HR: 01/0900Z NO VA EXP FCST VA CLD +18HR: 01/1500Z NO VA EXP RMK: VA EM NOT SEEN ON STLT OR WEBCAM DUE TO MET CLDS. HOWEVER, VA IS STILL EXPCD IN THE AREA. VA FL AND FRCST BASED ON PREVIOUS VAA AND LATEST NWP MODELS. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20220101/0345Z