FVXX21 KWBC 171156 VOLCANIC ASH ADVISORY ISSUED: 2003MAY17/1200Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/529 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 17/1115Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL050 MOVING W 20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: ASH CAN NOT BE SEEN IN THE SATELLITE IMAGERY THROUGH 17/1115Z DUE TO EXTENSIVE CLOUDS IN THE AREA....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003MAY17/1800Z. NNNN