FVXX21 KNES 162045 VA ADVISORY DTG: 20210816/2045Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/649 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: NEW VA EMS OBS VA DTG: 16/2020Z OBS VA CLD: SFC/FL150 N0002 W07749 - N0000 W07738 - S0008 W07740 - S0004 W07750 - N0002 W07749 MOV W 15KT FCST VA CLD +6HR: 17/0230Z SFC/FL150 N0004 W07801 - N0000 W07738 - S0009 W07739 - S0003 W07802 - N0004 W07801 FCST VA CLD +12HR: 17/0830Z NO VA EXP FCST VA CLD +18HR: 17/1430Z NO VA EXP RMK: NEW VA EMS OBS FM WEBCAM AT 1921Z LKLY MOVG WNW AS FCST BY NWP MDLS. PSBL VA OBS FM STLT DATA MOVG WNW. WINDS FCST TO RMN MOVG WNW THRU T+6. FL FM NWP ...MLEVINE NXT ADVISORY: WILL BE ISSUED BY 20210817/0245Z