FVXX23 KNES 181355 VA ADVISORY DTG: 20180518/1355Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/139 INFO SOURCE: GOES-EAST. NWP MODELS. VOLCANO WEB CAMERA. OVSICORI-UNA. ERUPTION DETAILS: RPRT FM OVSICORI-UNA OBS VA DTG: 18/1330Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL130 225/5-10KT FCST VA CLD +6HR: 18/1930Z FCST VA CLD +12HR: 19/0130Z FCST VA CLD +18HR: 19/0730Z RMK: INTMT VA EMS NOT SEEN IN STLT UNDER BINOVC. WEB CAM DOES SHOW LGT VA EMS. RPRTS FM OVSICORI-UNA INDICATE VA IS MOVG NE. NWP MODEL GUIDANCE INDICATES ANY VA WILL MOV TWD THE NE WITH A GRDL TURN TWD E THROUGH 18 HRS. ...KIBLER NXT ADVISORY: WILL BE ISSUED BY 20180518/2000Z