FVXX20 KWBC 180015 VOLCANIC ASH ADVISORY ISSUED: 2002DEC18/0015Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2002/227 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: WEAK ASH EMISSIONS. OBS ASH DATE/TIME: 17/1745Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE IMAGERY. SFC/FL05 WINDS MOVING W AT 5-10 KNOTS. FL050/FL070 WINDS MOVING SW AT 5 KNOTS. FL070/FL110 WINDS MOVING E AT 5-10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 2345Z. ASH AT LOW LEVELS IS DIFFICULT TO DISCERN AT NIGHT. SCATTERED CLOUDS ARE ALSO HAMPERING VISIBILITY. NEXT ADVISORY: WILL BE ISSUED BY 2002DEC18/0615Z. NNNN