FVXX20 KWBC 012319 VOLCANIC ASH ADVISORY ISSUE: 2003AUG01/2320Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/603 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: ERUPTION STARTING AT 01/1015Z OBS ASH DATE/TIME: 01/2245Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING N 20-25 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: CURRENT SATELLITE IMAGERY THROUGH 01/2245Z SHOWS AN EXTENSIVE AREA OF SCATTERED CLOUDS MOVING INTO THE VICINITY OF THE VOLCANO. THIS AND DARKNESS IS MAKING ASH DETECTION DIFFICULT. THE PREVIOUS ASH PLUME WAS VISIBLE IN THE LAST VISIBLE IMAGERY BUT CANNOT BE SEEN IN IR OR MULTISPECTRAL IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003AUG02/0530Z NNNN