FVXX21 KNES 052225 VA ADVISORY DTG: 20211205/2225Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1114 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS OBS VA DTG: 05/2150Z OBS VA CLD: SFC/FL150 S0004 W07739 - S0012 W07750 - S0007 W07753 - S0004 W07739 MOV SW 10KT FCST VA CLD +6HR: 06/0400Z SFC/FL150 S0004 W07739 - S0011 W07750 - S0004 W07753 - S0004 W07739 FCST VA CLD +12HR: 06/1000Z SFC/FL150 S0004 W07738 - S0011 W07750 - S0004 W07753 - S0004 W07738 FCST VA CLD +18HR: 06/1600Z NO VA EXP RMK: CONT VA EMS OBS MOV SW FM THE SUMMIT. VA FCST TO CONT W TO SW MOV THRU T+12HRS BEFORE DISP. VO ACT MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20211206/0430Z