FVXX21 KWBC 101816 VOLCANIC ASH ADVISORY ISSUED: 2003MAY10/1815Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/502 INFORMATION SOURCE: GOES-12 IMAGERY. 12Z GUADELOUPE UPPER AIR SOUNDING ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 10/1745Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING W 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: EXTENSIVE CIRRUS CLOUDS OBSCURE ANY ASH. NEXT ADVISORY: WILL BE ISSUED BY 2003MAY11/0030Z. NNNN