FVXX20 KNES 092158 VA ADVISORY DTG: 20210409/2158Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/256 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE ONGOING EMS. OBS VA DTG: 09/2130Z OBS VA CLD: SFC/FL160 N0003 W07752 - S0004 W07740 - S0005 W07740 - S0001 W07753 - N0003 W07752 MOV NW 10KT FCST VA CLD +6HR: 10/0330Z NO VA EXP FCST VA CLD +12HR: 10/0930Z NO VA EXP FCST VA CLD +18HR: 10/1530Z NO VA EXP RMK: DENSE WX CLDS HAVE OBSTRUCTED VIEW OF SUMMIT IN STLT AND WEB CAM IMAGERY. HOWEVER GIVEN PAST RECENT HIST ACT LIKELY CONTINUES. VAAG BASED ON PREV UPDATE AND NWP MDLS. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20210410/0400Z