FVXX21 KNES 311318 VA ADVISORY DTG: 20161231/1318Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA.RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2016/505 INFO SOURCE: GOES-EAST. GFS WINDS. VOLCANO WEB CAMERA. ERUPTION DETAILS: CONTINUOUS EMS OF GASES AND LIGHT VA OBS VA DTG: 31/1245Z OBS VA CLD: SFC/FL130 N1002 W08346 - N1001 W08345 - N0945 W08422 - N0952 W08423 - N1002 W08346 MOV W 10-15KT FCST VA CLD +6HR: 31/1900Z SFC/FL130 N1002 W08346 - N1001 W08345 - N0944 W08435 - N0959 W08437 - N1002 W08346 FCST VA CLD +12HR: 01/0100Z SFC/FL130 N1003 W08346 - N1001 W08345 - N0938 W08434 - N0953 W08436 - N1003 W08346 FCST VA CLD +18HR: 01/0700Z SFC/FL130 N1003 W08346 - N1001 W08345 - N0937 W08435 - N0955 W08438 - N1003 W08346 RMK: T+0 CONFIDENCE IS HIGH. MORNING VISIBLE IMAGERY SHOWS FAINT PLUME EXTENDING 30 NMI WSW OF THE VOLCANO. VOLCANO WEBCAMERA SHOWS PSBL LIGHT CONTENT OF VA. ...SCHWARTZ NXT ADVISORY: WILL BE ISSUED BY 20161231/1915Z