FVXX20 KWBC 290900 VOLCANIC ASH ADVISORY ISSUED: 2002DEC29/0900Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2002/274 INFORMATION SOURCE: GOES-8 IMAGERY. UPPER AIR SOUNDING FROM GUADELOUPE. ERUPTION DETAILS: ONGOING ASH EMISSIONS. PYROCLASTIC FLOW AT 28/1530Z. OBS ASH DATE/TIME: 29/0815Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING W 20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY DUE TO LOW AND MID LEVEL CLOUDS OBSCURING THE ISLAND. HOWEVER...SATELLITE TRENDS INDICATE THE LOW CLOUDS WILL MOVE WEST AWAY FROM THE ISLANDS IN THE NEXT FEW HOURS. IF ASH CAN BE DETECTED A NEW ADVISORY WILL BE ISSUED...OTHERWISE RESUME 6 HOUR CYCLE. ANALYST: HUGHES. NEXT ADVISORY: WILL BE ISSUED BY 2002DEC29/1500Z NNNN