FVXX21 KNES 062138 VA ADVISORY DTG: 20211206/2138Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1118 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT PSBL VA EMS OBS VA DTG: 06/2110Z OBS VA CLD: SFC/FL150 S0004 W07740 - S0011 W07756 - S0004 W07759 - S0004 W07740 MOV W 10KT FCST VA CLD +6HR: 07/0300Z SFC/FL150 S0004 W07740 - S0013 W07756 - S0006 W07759 - S0004 W07740 FCST VA CLD +12HR: 07/0900Z SFC/FL150 S0004 W07759 - S0004 W07739 - S0014 W07755 - S0004 W07759 FCST VA CLD +18HR: 07/1500Z NO VA EXP RMK: CONT PSBL VA EMS. VA NOT OBS IN STLT IMAGERY DUE TO WX CLDS. VA FCST BASED ON CONTINUINTY. VO ACT BEFORE WX CLDS WAS MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20211207/0345Z