FVXX21 KNES 110238 VA ADVISORY DTG: 20210811/0238Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/628 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 11/0220Z OBS VA CLD: SFC/FL170 N0008 W07801 - S0004 W07739 - S0005 W07740 - S0000 W07805 - N0008 W07801 MOV NW 20KT FCST VA CLD +6HR: 11/0830Z SFC/FL170 N0012 W07802 - S0003 W07740 - S0005 W07740 - N0001 W07806 - N0012 W07802 FCST VA CLD +12HR: 11/1430Z NO VA EXP FCST VA CLD +18HR: 11/2030Z NO VA EXP RMK: VA NOT OBS IN SAT DUE TO MET CLD OBSCN. CONTG VA EMS PSBL BASED ON RECENT ACT. OBS VA AREA ESTD FM NWP MDLS AND PREV VAA. LTLCG EXP IN FL WINDS THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210811/0845Z