FVXX21 KNES 232006 VA ADVISORY DTG: 20170923/2006Z VAAC: WASHINGTON VOLCANO: TURRIALBA 345070 PSN: N1001 W08346 AREA: COSTA_RICA SUMMIT ELEV: 10958 FT (3340 M) ADVISORY NR: 2017/252 INFO SOURCE: GOES-EAST. NON-OPERATIONAL GOES-16. NWP MODELS. VOLCANO WEB CAMERA. ERUPTION DETAILS: VA EMS OBS VA DTG: 23/1945Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL120 225/0-5KT FCST VA CLD +6HR: 24/0200Z FCST VA CLD +12HR: 24/0800Z FCST VA CLD +18HR: 24/1400Z RMK: VA CANNOT BE IN STLT IMAGERY DUE TO CLD CVR. WEBCAM SHOWS ASH EMS. MODELS SHOWS VARIABLE WINDS AT FL120. ...WHISNANT NXT ADVISORY: WILL BE ISSUED BY 20170924/0200Z