FVXX21 KNES 160027 VA ADVISORY DTG: 20210816/0027Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/646 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: OCNL VA CLDS OBS IN STLT IMAGERY OBS VA DTG: 16/0010Z OBS VA CLD: SFC/FL160 N0008 W07752 - S0004 W07739 - S0005 W07740 - S0000 W07757 - N0008 W07752 MOV NW 10KT FCST VA CLD +6HR: 16/0600Z SFC/FL160 N0004 W07758 - S0004 W07739 - S0007 W07739 - S0005 W07759 - N0004 W07758 FCST VA CLD +12HR: 16/1200Z NO VA EXP FCST VA CLD +18HR: 16/1800Z NO VA EXP RMK: OCNL VA CLDS OBS IN STLT AND SUMMIT WEBCAM MOVG WNW FM SUMMIT. VA HGT/DIR FM PREV VAA, STLT, AND NWP MDLS SHOWS A WNW-LY TO W-LY MOVMT TREND THRU T+6. ...SAMBUCCI NXT ADVISORY: WILL BE ISSUED BY 20210816/0630Z