FVXX21 KWBC 180953 VOLCANIC ASH ADVISORY ISSUED: 2004MAR18/1000Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: W.INDIES SUMMIT ELEVATION: 3002 FT (915 M) ADVISORY NUMBER: 2004/55 INFORMATION SOURCE: GOES-12 IMAGERY. UPPER AIR SOUNDING. ERUPTION DETAILS: CONTINUOUS ASH VENTING. OBS ASH DATE/TIME: 18/0915Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING W 20-25 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 18/0915Z DUE TO WEATHER CLOUDS. BROWN NEXT ADVISORY: WILL BE ISSUED BY 2004MAR18/1600Z. NNNN