FVXX23 KNES 080449 VA ADVISORY DTG: 20170108/0449Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2017/029 INFO SOURCE: GOES-EAST. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: PSBL VA EM OBS VA DTG: 08/0415Z OBS VA CLD: SFC/FL140 N1004 W08347 - N1001 W08346 - N0815 W08540 - N0849 W08601 - N1004 W08347 MOV SW 15-20KT FCST VA CLD +6HR: 08/1030Z SFC/FL140 NO ASH EXP FCST VA CLD +12HR: 08/1630Z NO ASH EXP FCST VA CLD +18HR: 08/2230Z NO ASH EXP RMK: T+0 CONFIDENCE LOW. CONS VA EM PSBL BASED ON RECENT ACT. VA NOT DETECTABLE IN STLT DUE TO WX CLDS. SUMMIT NOT VISIBLE IN WEBCAM. OBS VA EXTENT BASED ON 6HR FCST FROM PREVIOUS ADVISORY. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20170108/1045Z