FVXX23 KNES 300818 VA ADVISORY DTG: 20211230/0818Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1193 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE VA EM OBS VA DTG: 30/0740Z OBS VA CLD: SFC/FL150 S0002 W07752 - S0004 W07740 - S0005 W07740 - S0007 W07752 - S0002 W07752 MOV W 5KT FCST VA CLD +6HR: 30/1330Z SFC/FL150 S0002 W07752 - S0004 W07740 - S0005 W07739 - S0007 W07752 - S0002 W07752 FCST VA CLD +12HR: 30/1930Z SFC/FL150 S0005 W07741 - S0005 W07740 - S0010 W07749 - S0005 W07751 - S0005 W07741 FCST VA CLD +18HR: 31/0130Z NO VA EXP RMK: VA EM NOT SEEN ON STLT IMAGERY DUE TO CLD CVR. HOWEVER, WEBCAM SHOWS EMS WHICH MAY CONTAIN VA. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20211230/1415Z