FVXX21 KNES 311252 VA ADVISORY DTG: 20210831/1252Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/718 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: POSS VA EMS OBS VA DTG: 31/1230Z OBS VA CLD: SFC/FL150 N0009 W07747 - S0005 W07737 - S0006 W07740 - N0001 W07756 - N0009 W07747 MOV NW 10KT FCST VA CLD +6HR: 31/1830Z SFC/FL150 N0013 W07748 - S0005 W07735 - S0007 W07740 - N0002 W07759 - N0013 W07748 FCST VA CLD +12HR: 01/0030Z NO VA EXP FCST VA CLD +18HR: 01/0630Z NO VA EXP RMK: POSS VA EMS MOV NW FM SUMMIT. VA NOT OBS IN SAT DATA DUE TO WX CLDS IN AREA. NWP MDLS FCST LTLCG THRU T+6. ...TUGGLE NXT ADVISORY: WILL BE ISSUED BY 20210831/1845Z