FVXX21 KNES 311153 VA ADVISORY DTG: 20161231/1153Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2016/504 INFO SOURCE: GOES-EAST. GFS WINDS. ERUPTION DETAILS: CONS EM OBS VA DTG: 31/1115Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL130 090/10-15KT FCST VA CLD +6HR: 31/1730Z FCST VA CLD +12HR: 31/2330Z FCST VA CLD +18HR: 01/0530Z RMK: VA NOT DETECTED IN STLT IMAGERY DUE TO WX CLD. ...TURK NXT ADVISORY: WILL BE ISSUED BY 20161231/1800Z