FVXX20 KNES 050438 VA ADVISORY DTG: 20210705/0438Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/520 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 05/0410Z OBS VA CLD: SFC/FL150 N0005 W07751 - S0004 W07739 - S0005 W07740 - N0001 W07754 - N0005 W07751 MOV NW 15KT FCST VA CLD +6HR: 05/1000Z NO VA EXP FCST VA CLD +12HR: 05/1600Z NO VA EXP FCST VA CLD +18HR: 05/2200Z NO VA EXP RMK: VA NOT OBS IN SAT OR WEBCAM WITH PARTIAL MET CLD OBSCN. CONTG OCNL VA EMS PSBL BASED ON RECENT ACT. OBS VA AREA ESTD FM NWP MDLS AND PREV VAA. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210705/1045Z