FVXX22 KNES 160038 VA ADVISORY DTG: 20181216/0038Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/334 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. NWP MODELS. METAR. ERUPTION DETAILS: PLUME OBS IN STLT IMAGERY OBS VA DTG: 15/2215Z OBS VA CLD: SFC/FL120 N1002 W08346 - N1001 W08344 - N0949 W08358 - N0951 W08358 - N1002 W08346 MOV SW 10-15KT FCST VA CLD +6HR: 16/0430Z SFC/FL120 N1003 W08346 - N1001 W08344 - N0951 W08401 - N0953 W08402 - N1003 W08346 FCST VA CLD +12HR: 16/1030Z SFC/FL120 N1004 W08346 - N1001 W08345 - N0951 W08400 - N0953 W08402 - N1004 W08346 FCST VA CLD +18HR: 16/1630Z SFC/FL120 N1003 W08346 - N1001 W08344 - N0953 W08403 - N0958 W08404 - N1003 W08346 RMK: IN WANING VIS STLT IMAGERY A VERY NRW PLUME EXT 16 NM SW OF THE SUMMIT. EM FCST TO VEER SLIGHTLY OVR NXT 18 HRS. ...TURK NXT ADVISORY: WILL BE ISSUED BY 20181216/0645Z