FVXX21 KNES 041544 VA ADVISORY DTG: 20210904/1544Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/734 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: FRQT VA EMS. OBS VA DTG: 04/1510Z OBS VA CLD: SFC/FL170 N0017 W07800 - S0004 W07739 - S0005 W07740 - N0008 W07807 - N0017 W07800 MOV W 25KT FCST VA CLD +6HR: 04/2100Z SFC/FL170 N0019 W07801 - S0004 W07738 - S0005 W07740 - N0006 W07810 - N0019 W07801 FCST VA CLD +12HR: 05/0300Z SFC/FL170 N0020 W07802 - S0004 W07739 - S0005 W07740 - N0006 W07812 - N0020 W07802 FCST VA CLD +18HR: 05/0900Z SFC/FL170 N0020 W07802 - S0004 W07739 - S0005 W07740 - N0005 W07812 - N0020 W07802 RMK: MANY VA CLDS OBSD IN WEBCAM AND STLT IMAGERY SINCE PREV ADVY. VONA RPRTS NEW VA CLD AT 1528Z MOVG NW. NWP MDLS FCST LTLCG IN WINDS THRU T+18HRS. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20210904/2145Z