FVXX21 KNES 170215 VA ADVISORY DTG: 20210617/0215Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/460 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE VA EM OBS VA DTG: 17/0140Z OBS VA CLD: SFC/FL150 N0000 W07747 - S0004 W07740 - S0005 W07740 - S0004 W07750 - N0000 W07747 MOV W 5KT FCST VA CLD +6HR: 17/0730Z SFC/FL150 N0000 W07747 - S0005 W07740 - S0005 W07740 - S0004 W07749 - N0000 W07747 FCST VA CLD +12HR: 17/1330Z NO VA EXP FCST VA CLD +18HR: 17/1930Z NO VA EXP RMK: VA EM NOT DETECTED IN STLT IMAGERY DUE TO CLD CVR. WEBCAM SHOWS EM WHICH MAY CONTAIN VA. HEIGHT AND FRCST BASED ON MODEL GUIDANCE WITH LOW CONFIDENCE. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20210617/0815Z