FVXX21 KNES 091613 VA ADVISORY DTG: 20170509/1613Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2017/135 INFO SOURCE: RADIOSONDE. OVSICORI-UNA. ERUPTION DETAILS: ERUPTION AT 09/1500Z. OBS VA DTG: 09/1600Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL130 135/5-10KT FCST VA CLD +6HR: 09/2200Z FCST VA CLD +12HR: 10/0400Z FCST VA CLD +18HR: 10/1000Z RMK: T+0 CONFIDENCE LOW. OVSICORI-UNA RPRT AN ERUPTION AT 1502Z AND CONTINUING. ASH NOT SEEN IN STLT DUE TO WX CLOUDS. ...SANDUSKY NXT ADVISORY: WILL BE ISSUED BY 20170509/2215Z