FVXX21 KNES 231938 VOLCANIC ASH ADVISORY ISSUED: 2004DEC23/1938Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 LOCATION: N1446W09133 AREA: GUATEMALA SUMMIT ELEVATION: 12375 FT (3772 M) ADVISORY NUMBER: 2004/34 INFORMATION SOURCE: GOES-12. GFS MODEL WINDS. ERUPTION DETAILS: STEAM AND ASH VENTING AT 1315 UTC OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: THE PLUME OF ASH AND STEAM OBSERVED MOVING TO THE WEST HAS DISSIPATED. ... NEXT ADVISORY: NO FURTHER ADVISORIES NNNN