FVXX21 KWBC 211624 VOLCANIC ASH ADVISORY ISSUED: 2003MAY21/1630Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/544 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 21/1545Z OBS ASH CLOUD: SFC/FL120 N1643W06211 N1651W06146 N1716W06118 N1730W06122 N1739W06141 N1738W06209 N1643W06211 MOVING NE 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: VISIBLE IMAGES THROUGH 1545Z SHOWED A VERY THIN AND FAINT PLUME OF ASH TO THE NORTH AND EAST OF THE VOLCANO. THIS THIN ASH EXTENDS APPROXIMATELY 65 NM FROM THE VOLCANO. HOTSPOT ACTIVITY IS CONTINUING. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY21/2230Z NNNN