FVXX20 KNES 111818 VA ADVISORY DTG: 20210411/1818Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/264 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE ONGOING EMS. OBS VA DTG: 11/1800Z OBS VA CLD: SFC/FL160 N0003 W07756 - S0005 W07740 - S0006 W07740 - S0006 W07758 - N0003 W07756 MOV W 10KT FCST VA CLD +6HR: 12/0000Z NO VA EXP FCST VA CLD +12HR: 12/0600Z NO VA EXP FCST VA CLD +18HR: 12/1200Z NO VA EXP RMK: DENSE WX CLD COVER PRECLUDES SEEING ANY VA IN STLT OR WEB CAM IMAGERY. HOWEVER RECENT PAST ACT SUGGESTS ONGOING EMS. VAAG BASED ON PREV UPDATE AND NWP MDLS. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20210412/0015Z