FVXX20 KNES 281332 VA ADVISORY DTG: 20180228/1332Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2018/076 INFO SOURCE: NWP MODELS. VOLCANO WEB CAMERA. OVSICORI-UNA. ERUPTION DETAILS: NEW VA EMS. OBS VA DTG: 28/1300Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL125 090/5-10KT FCST VA CLD +6HR: 28/1900Z FCST VA CLD +12HR: 01/0100Z FCST VA CLD +18HR: 01/0700Z RMK: MOSTLY GAS AND SOME VA EVIDENT IN WEBCAM. VA QUICKLY DISPERSING NEAR SUMMIT. VA CANNOT BE SEEN IN VISIBLE STLT UNDER CLEAR SKIES. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20180228/1930Z