FVXX21 KNES 160617 VA ADVISORY DTG: 20210816/0617Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/647 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS OBS VA DTG: 16/0540Z OBS VA CLD: SFC/FL160 N0005 W07801 - S0004 W07740 - S0004 W07802 - N0005 W07801 MOV W 10KT FCST VA CLD +6HR: 16/1130Z SFC/FL160 N0006 W07805 - S0004 W07739 - S0007 W07806 - N0006 W07805 FCST VA CLD +12HR: 16/1730Z NO VA EXP FCST VA CLD +18HR: 16/2330Z NO VA EXP RMK: CONT VA EMS OBS MOV W IN STLT IMAGERY. VA FCST TO CONT W MOV THRU T+6HRS BEFORE DISP. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20210816/1215Z