FVXX21 KNES 170808 VA ADVISORY DTG: 20210617/0808Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/461 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: CONTG OCNL VA EMS. OBS VA DTG: 17/0740Z OBS VA CLD: SFC/FL150 S0001 W07750 - S0004 W07739 - S0005 W07739 - S0005 W07751 - S0001 W07750 MOV W 10KT FCST VA CLD +6HR: 17/1330Z NO VA EXP FCST VA CLD +12HR: 17/1930Z NO VA EXP FCST VA CLD +18HR: 18/0130Z NO VA EXP RMK: VA NOT OBS IN SAT WITH WX CLD OBSCN. WEBCAM SHOWS CONTD OCNL VA EMS. OBS VA AREA AND DIR ESTD FM PREV VAA AND NWP MDLS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210617/1415Z