FVXX21 KWBC 011850 VOLCANIC ASH ADVISORY ISSUED: 2003MAY01/1900Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/466 INFORMATION SOURCE: GOES-12 IMAGERY. 12Z GUADELOUPE UPPER AIR SOUNDING. ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 01/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL060 MOVING W 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: VISIBLE SATELLITE IMAGERY SHOWS CLOUDS OVER THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH. AN OCCASIONAL HOT SPOT PERSISTS IN SHORTWAVE IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY02/0100Z. NNNN