FVXX22 KNES 040409 VA ADVISORY DTG: 20210104/0409Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/008 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL CONTG VA EMS. OBS VA DTG: 04/0350Z OBS VA CLD: SFC/FL150 S0004 W07740 - S0004 W07739 - S0015 W07738 - S0014 W07744 - S0004 W07740 MOV S 5KT FCST VA CLD +6HR: 04/1000Z SFC/FL150 S0003 W07740 - S0003 W07739 - S0014 W07737 - S0014 W07742 - S0003 W07740 FCST VA CLD +12HR: 04/1600Z NO VA EXP FCST VA CLD +18HR: 04/2200Z NO VA EXP RMK: VA FAINTLY OBS EXT UP TO 12 NM S OF SUMMIT PRIOR TO RECENT WX CLD OBSCN. LTLCG EXP IN FL WINDS THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210104/1015Z