FVXX21 KWBC 201817 VOLCANIC ASH ADVISORY ISSUED: 2003MAY20/1830Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/540 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 20/1745Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING W 10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: NO ASH COULD BE DETECTED IN MULTISPECTRAL ...INFRARED OR VISIBLE SATELLITE IMAGERY THROUGH 1745Z DUE TO CLOUDS IN THE AREA. INTERMITTENT HOTSPOT ACTIVITY CONTINUES. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY21/0030Z NNNN