FVXX21 KWBC 220659 VOLCANIC ASH ADVISORY ISSUED: 2003APR22/0700Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/428 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 22/0645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING W 5 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: SATELLITE IMAGERY THROUGH 22/0645Z SHOWS MOSTLY CLOUDY SKIES OVER THE AREA OF THE VOLCANO MAKING DETECTION OF ASH DIFFICULT. HOWEVER AND OCCASIONAL HOTSPOT HAS BEEN OBSERVED IN THE MULTI-SPECTRAL IMAGERY OVER THE PAST SIX HOURS....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003APR22/1300Z. NNNN