FVXX21 KNES 150330 VA ADVISORY DTG: 20210815/0330Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/642 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSSIBLE ONGOING EMS. OBS VA DTG: 15/0310Z OBS VA CLD: SFC/FL150 N0008 W07751 - S0002 W07737 - S0006 W07742 - S0002 W07758 - N0008 W07751 MOV 0KT FCST VA CLD +6HR: 15/0900Z NO VA EXP FCST VA CLD +12HR: 15/1500Z NO VA EXP FCST VA CLD +18HR: 15/2100Z NO VA EXP RMK: DENSE CLDS HAVE OBSCURED VIEW OF THE SUMMIT IN WEB CAM AND STLT IMAGERY. HOWEVER, FAINT BURSTS OF INCANDESCENCE NOTED THRU THE CLDS. THIS INDICATES POSS EMS. VA MOV TO NW BASED ON NWP MDLS. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20210815/0930Z