FVXX20 KNES 281820 VA ADVISORY DTG: 20160928/1820Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2016/204 INFO SOURCE: GOES-EAST. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 28/1745Z OBS VA CLD: SFC/FL150 N1013 W08411 - N1004 W08347 - N1002 W08346 - N1001 W08346 - N1006 W08407 - N1008 W08415 - N1013 W08411 MOV NW 10-15KT FCST VA CLD +6HR: 29/0000Z SFC/FL150 N1016 W08414 - N1003 W08345 - N1001 W08347 - N1008 W08419 - N1016 W08414 FCST VA CLD +12HR: 29/0600Z SFC/FL150 NO ASH EXP FCST VA CLD +18HR: 29/1200Z NO ASH EXP RMK: ONGOING VA EMS SEEN IN STLT AND WEBCAM. PLUME IS ATTACHED TO SUMMIT AND EXTDS ROUGHLY 16 NMI TO THE NW. ...WHISNANT NXT ADVISORY: WILL BE ISSUED BY 20160929/0015Z