FVXX21 KNES 180456 VA ADVISORY DTG: 20211118/0456Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1040 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS OBS VA DTG: 18/0420Z OBS VA CLD: SFC/FL150 S0004 W07740 - S0016 W07749 - S0010 W07755 - S0004 W07740 MOV SW 10KT FCST VA CLD +6HR: 18/1030Z SFC/FL150 S0004 W07739 - S0016 W07748 - S0010 W07755 - S0004 W07739 FCST VA CLD +12HR: 18/1630Z NO VA EXP FCST VA CLD +18HR: 18/2230Z NO VA EXP RMK: CONT VA EMS OBS MOV SW IN STLT IMAGERY. VA FCST TO CONT SW MOV THRU T+6HRS BEFORE DISP. VO ACT MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20211118/1100Z