FVXX20 KNES 201938 VA ADVISORY DTG: 20150720/1938Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2015/027 INFO SOURCE: GOES-EAST. GFS WINDS. SERVICIO GEOLOGIO COLOMBIANO ERUPTION DETAILS: NEAR SUMMIT EMISSION OF GASES AND LIGHT ASH OBS VA DTG: 20/1915Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 21/0130Z FCST VA CLD +12HR: 21/0730Z FCST VA CLD +18HR: 21/1330Z RMK: NO ASH DETECTED IN SAT IMAGERY DUE TO CLOUDS. THE VO RPRTS NEAR SUMMIT EMISSION OF GASES WITH LGT ASH. THE VA IS BELIEVED TO EXTND W WITHIN 5-8NM. ...SWANSON NXT ADVISORY: NO FURTHER ADVISORIES