FVXX21 KNES 202220 VA ADVISORY DTG: 20150820/2220Z VAAC: WASHINGTON VOLCANO: COTOPAXI 352050 PSN: S0040 W07826 AREA: ECUADOR SUMMIT ELEV: 19393 FT (5911 M) ADVISORY NR: 2015/031 INFO SOURCE: GOES-EAST. GUAYAQUIL MWO. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: PUFF AT 20/2124Z OBS VA DTG: 20/2145Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL240 090/15-20KT FCST VA CLD +6HR: 21/0400Z FCST VA CLD +12HR: 21/1000Z FCST VA CLD +18HR: 21/1600Z RMK: GUAYAQUIL MWO NOTED VA TO FL240. QUICK PUFF SEEN IN WEB CAM BUT NOT VISIBLE IN STLT IMAGERY. STLT AND GFS MODEL WINDS INDICATE VA MOV TO W. ...RUMINSKI NXT ADVISORY: WILL BE ISSUED BY 20150821/0415Z