FVXX20 KNES 112328 VA ADVISORY DTG: 20210711/2328Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/539 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: VONA RPT VA EM 11/2256Z. OBS VA DTG: 11/2300Z OBS VA CLD: SFC/FL140 N0005 W07757 - S0004 W07739 - S0005 W07740 - S0001 W07759 - N0005 W07757 MOV NW 10KT FCST VA CLD +6HR: 12/0500Z SFC/FL140 N0001 W07758 - S0004 W07739 - S0005 W07740 - S0004 W07759 - N0001 W07758 FCST VA CLD +12HR: 12/1100Z NO VA EXP FCST VA CLD +18HR: 12/1700Z NO VA EXP RMK: VA EM RPTD BY VONA 11/2256Z TO FL140 MOV NW. VA NOT OBS IN SAT WITH MET CLD OBSCN INVOF SUMMIT. OBS VA AREA ESTD FM NWP MDLS WITH LOWER CONFIDENCE. FL WINDS FCST TO BACK SLIGHTLY THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210712/0530Z