FVXX20 KWBC 1704540 VOLCANIC ASH ADVISORY ISSUE: 2003JUL17/0500Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/598 INFORMATION SOURCE: GOES-12 IMAGERY. UPPER AIR SOUNDING. GFS MODEL WINDS FORECAST ERUPTION DETAILS: NEAR CONTINUOUS EMISSIONS OF ASH AND GASES. OBS ASH DATE/TIME: 17/0415Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING NW 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: SATELLITE IMAGERY THROUGH 17/0415Z SHOWS NO CURRENT ASH PLUME. SOME HOT SPOT ACTIVITY HAS BEEN NOTED IN MULTISPECTRAL IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003JUL17/1100Z. NNNN