FVXX21 KWBC 181331 VOLCANIC ASH ADVISORY ISSUED: 2003DEC18/1330Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 LOCATION: N1445W09133 AREA: GUATEMALA SUMMIT ELEVATION: 12375 FT (3772 M) ADVISORY NUMBER: 2003/24 INFORMATION SOURCE: GOES 12 IMAGERY. SURFACE OBSERVATION ERUPTION DETAILS: MINOR EMISSIONS OBS ASH DATE/TIME: 18/1300Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL200 MOVING W 5-10 KT FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: RETALHULEU AIRPORT REPORTS THAT SANTIAGUITO A SIDE VENT OF SANTA MARIA IS IN ERUPTION AT 18/1300Z. NO ASH IS OBSERVED IN IMAGERY THROUGH 18/1315Z WITH CLEAR SKIES. NEXT ADVISORY: NO FURTHER ADVISORIES. NNNN