FVXX21 KWBC 150549 VOLCANIC ASH ADVISORY ISSUED: 2003MAY15/0600Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/520 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 15/0515Z. OBS ASH CLOUD: SFC/FL050 ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS MOVING W 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: SATELLITE IMAGERY THROUGH 15/0515Z SHOWS NO VISIBLE ASH PLUME DUE TO LOW LEVEL CLOUDS. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY15/1200Z. NNNN