FVXX21 KNES 081527 VA ADVISORY DTG: 20210808/1527Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/618 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: FRQT EMS OBS OBS VA DTG: 08/1500Z OBS VA CLD: SFC/FL150 N0002 W07758 - S0004 W07740 - S0005 W07741 - S0007 W07802 - N0002 W07758 MOV W 15KT FCST VA CLD +6HR: 08/2100Z SFC/FL150 N0005 W07757 - S0004 W07740 - S0005 W07741 - S0008 W07805 - N0005 W07757 FCST VA CLD +12HR: 09/0300Z SFC/FL150 N0007 W07802 - S0004 W07740 - S0005 W07740 - S0009 W07803 - N0007 W07802 FCST VA CLD +18HR: 09/0900Z SFC/FL150 N0004 W07802 - S0004 W07740 - S0006 W07741 - S0010 W07803 - N0004 W07802 RMK: VA CLD OBS IN STLT IMAGERY AND IN WEBCAM THE PAST FEW HRS. WX CLDS NOW OBSC SUMMIT. MVMT REMAINS W/WNW THRU T+18 HRS BASED ON MDL GUIDANCE. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20210808/2130Z