FVXX21 KNES 310539 VA ADVISORY DTG: 20171231/0539Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2017/830 INFO SOURCE: GOES-EAST. NWP MODELS. CIMSS VOLCAT. VOLCANO WEB CAMERA. ERUPTION DETAILS: OCNL EM OBS VA DTG: 31/0515Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL150 045/5KT FCST VA CLD +6HR: 31/1130Z FCST VA CLD +12HR: 31/1730Z FCST VA CLD +18HR: 31/2330Z RMK: VA NOT SEEN IN STLT IMAGES DUE TO WX CLDS. WEBCAM SUGGESTED AN EM OCCURED IN THE LAST 2 HRS. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20171231/1145Z