FVXX24 KNES 211723 VA ADVISORY DTG: 20170821/1723Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2017/227 INFO SOURCE: NON-OPERATIONAL GOES-16. NWP MODELS. VOLCANO WEB CAMERA. OVSICORI-UNA. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 21/1645Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL120 180/5-10KT FCST VA CLD +6HR: 21/2300Z FCST VA CLD +12HR: 22/0500Z FCST VA CLD +18HR: 22/1100Z RMK: VA NOT SEEN IN STLT DUE TO WX CLDS. ONGOING ERUPTION OBS IN WEBCAM TO FL120. MODELS SUGGEST VA WOULD MOV N FM SUMMIT AT 10KTS. ...RAMIREZ NXT ADVISORY: WILL BE ISSUED BY 20170821/2330Z