FVXX20 KWBC 250800 VOLCANIC ASH ADVISORY ISSUED: 2002DEC25/0800Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2002/257 INFORMATION SOURCE: GOES-8 IMAGERY. UPPER AIR SOUNDING. ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 25/0715Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL050 MOVING W 20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH WAS EITHER TOO LOW OR TOO DIFFUSE TO DETECT IN SATELLITE IMAGERY THROUGH 0715Z. KARST NEXT ADVISORY: WILL BE ISSUED BY 2002DEC25/1400Z. NNNN