FVXX21 KWBC 040657 VOLCANIC ASH ADVISORY ISSUED: 2003MAY04/0700Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/476 INFORMATION SOURCE: GOES-12 IMAGERY. 00Z GUADELOUPE UPPER AIR SOUNDING ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 04/0645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL060 MOVING W 15-20 KNOTS. WINDS FL060/FL100 MOVING S 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: A HOTSPOT CAN OCCASIONALLY BE SEEN IN SHORTWAVE SATELLITE IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY04/1300Z. NNNN