FVXX23 KNES 291926 VA ADVISORY DTG: 20120529/1926Z VAAC: WASHINGTON VOLCANO: RUIZ 1501-02 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2012/006 INFO SOURCE: GOES-13. GFS WINDS. HYSPLIT. SEISMIC DETECTION. AFWA. INGEOMINAS. OMI. MODIS. UW-CIMSS/STAR ERUPTION DETAILS: ERUPTION AT 29/0800Z OBS VA DTG: 29/1845Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 30/0100Z FCST VA CLD +12HR: 30/0700Z FCST VA CLD +18HR: 30/1300Z RMK: VA CANNOT BE SEEN IN NEARLY CLEAR SKIES. STAR/UW-CIMSS VA TECHNIQUE USING 1515Z MODIS PASS INDICATED ERUPTION WAS MAINLY ICE AS VA WAS NOT DETECTED. OMI SO2 PRODUCT SHOWED GOOD PLUME OF SO2 TOWARD NW OF VOLCANO. ...GALLINA NXT ADVISORY: NO FURTHER ADVISORIES NNNN