FVXX21 KNES 121520 VA ADVISORY DTG: 20150812/1520Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2015/042 INFO SOURCE: GOES-EAST. GFS WINDS. ERUPTION DETAILS: VA NOT OBSERVED IN STLT IMAGERY. OBS VA DTG: 12/1445Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 12/2100Z FCST VA CLD +12HR: 13/0300Z FCST VA CLD +18HR: 13/0900Z RMK: VA NOT OBSERVED IN MOSTLY CLEAR STLT IMAGERY. ...SALEMI NXT ADVISORY: NO FURTHER ADVISORIES