FVXX22 KNES 161623 VA ADVISORY DTG: 20181216/1623Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/337 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 16/1600Z OBS VA CLD: SFC/FL120 N1004 W08355 - N1002 W08346 - N1000 W08347 - N0957 W08354 - N1004 W08355 MOV W 5-10KT FCST VA CLD +6HR: 16/2200Z SFC/FL120 NO ASH EXP FCST VA CLD +12HR: 17/0400Z NO ASH EXP FCST VA CLD +18HR: 17/1000Z NO ASH EXP RMK: INTERMITTENT SPURTS OF VA ALONG WITH WATER VAPOR CAN BE SEEN IN WEBCAM. VA DRIFTING W FROM SUMMIT. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20181216/2230Z