FVXX21 KNES 122108 VA ADVISORY DTG: 20170512/2108Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2017/138 INFO SOURCE: GOES-EAST. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: ONGOING VA EMS PSBL OBS VA DTG: 12/2045Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL150 090/5KT FCST VA CLD +6HR: 13/0300Z FCST VA CLD +12HR: 13/0900Z FCST VA CLD +18HR: 13/1500Z RMK: T+0 CONFIDENCE LOW. VA NOT OBSERVED IN STLT OR IN WEBCAM DUE TO WX CLDS. ONGOING LGT VA EMS PSBL. MODELS SUPPORT ASH MOV W FM SUMMIT AT 5KTS BELOW FL150. ...RAMIREZ NXT ADVISORY: WILL BE ISSUED BY 20170513/0315Z