FVXX21 KWBC 070517 VOLCANIC ASH ADVISORY ISSUED: 2003MAY07/0530Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/488 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 07/0445Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING W 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: THE ASH HAS BECOME TOO THIN AND DIFFUSE TO DETECT IN MULTISPECTRAL IMAGERY.. KARST NEXT ADVISORY: WILL BE ISSUED BY 2003MAY07/1130Z. NNNN