FVXX20 KWBC 110005 CCA VOLCANIC ASH ADVISORY ISSUED: 2003APR11/0005Z VAAC: WASHINGTON CORRECTION TO NEXT ISSUE TIME. VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2003/393 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 10/2315Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS SFC/FL070 MOVING NW 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: THE LAST SATELLITE IMAGERY OF THE DAY SHOWED A THIN 15 NM WIDE PLUME EXTENDING APPROXIMATELY 100 NM NORTHWEST OF THE VOLCANO. THIS PLUME WAS TOO THIN TO BE VISIBLE IN SUBSEQUENT IMAGERY THROUGH 10/2315Z. SCATTERED LOW AND MIDDLE LEVEL CLOUDS MAY BE OBSCURING ASH. NEXT ADVISORY: WILL BE ISSUED BY 2003APR11/0600Z. NNNN