FVXX21 KNES 231621 VA ADVISORY DTG: 20150723/1621Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2015/028 INFO SOURCE: GOES-EAST. ASHTAM. RADIOSONDE. GFS WINDS. SEISMIC DETECTION. VOLCANO WEB CAMERA. SERVICIO GELOLOGICO COLOMBIANO ERUPTION DETAILS: SEISMIC SIGNALS OF EMISSIONS STARTING AROUND 1400Z. OBS VA DTG: 23/1545Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL200 090/30KT FCST VA CLD +6HR: 23/2200Z FCST VA CLD +12HR: 24/0400Z FCST VA CLD +18HR: 24/1000Z RMK: SATELLITE AND WEBCAM IMAGERY CLDY SO NO ASH DETECTED. VO RPRTS SEISMIC INDICATION OF EMISSIONS EST TO FL200 MOV SW. MODEL AND RAOB WINDS TO FL200 SHOW WINDS WOULD MOV ASH W AT 30KT. ...SWANSON NXT ADVISORY: WILL BE ISSUED BY 20150723/2215Z