FVXX21 KNES 250035 VA ADVISORY DTG: 20210925/0035Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/817 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: OCNL VA EMS OBSD OBS VA DTG: 25/0010Z OBS VA CLD: SFC/FL150 N0005 W07750 - S0004 W07740 - S0005 W07740 - S0000 W07753 - N0005 W07750 MOV NW 10KT FCST VA CLD +6HR: 25/0600Z SFC/FL150 N0006 W07753 - S0004 W07740 - S0005 W07740 - N0000 W07756 - N0006 W07753 FCST VA CLD +12HR: 25/1200Z NO VA EXP FCST VA CLD +18HR: 25/1800Z NO VA EXP RMK: OCNL VA EMS OBSD IN STLT AMONG WX CLDS EXT ABT 14 NM WNW OF SUMIIT. WEB CAM OBSC BY WX CLD. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20210925/0630Z