FVXX20 KWBC 170859 VOLCANIC ASH ADVISORY ISSUED: 2003APR17/0900Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2003/419 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. UPPER AIR SOUNDING. ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 17/0815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL030 MOVING NW 10 KNOTS. FL050/FL070 MOVING NE 10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH IS TOO THIN TO SEE IN MULTISPECTRAL OR INFRARED SATELLITE IMAGERY THROUGH 0815Z. NO HOTSPOT CAN BE SEEN. NEXT ADVISORY: WILL BE ISSUED BY 2003APR17/1500Z NNNN