FVXX20 KNES 162233 VA ADVISORY DTG: 20170916/2233Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2017/420 INFO SOURCE: GOES-EAST. NON-OPERATIONAL GOES-16. NWP MODELS. VOLCANO WEB CAMERA. ERUPTION DETAILS: VA EMS OBS VA DTG: 16/2215Z OBS VA CLD: SFC/FL150 N0006 W07749 - S0004 W07738 - S0007 W07740 - N0000 W07755 - N0006 W07749 MOV NW 15KT FCST VA CLD +6HR: 17/0430Z SFC/FL150 N0003 W07753 - S0003 W07738 - S0007 W07737 - S0004 W07758 - N0003 W07753 FCST VA CLD +12HR: 17/1030Z SFC/FL150 N0004 W07752 - S0004 W07737 - S0007 W07738 - S0002 W07757 - N0004 W07752 FCST VA CLD +18HR: 17/1630Z SFC/FL150 NO ASH EXP RMK: VA EMS SEEN IN NON-OPERATIONAL GOES-16 STLT IMAGERY MOV TO THE NW. MODELS SHOW MORE WNW MOV AT T+6 AND T+12. ...WHISNANT NXT ADVISORY: WILL BE ISSUED BY 20170917/0430Z