FVXX21 KWBC 231824 VOLCANIC ASH ADVISORY ISSUED: 2003MAY23/1830Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/553 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 23/1745Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING W 15-25 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: SATELLITE IMAGERY SHOWS EXTENSIVE CLOUDINESS OVER THE CARIBBEAN MAKING IT DIFFICULT TO DETECT ANY VOLCANIC ASH. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY24/0030Z. NNNN