FVXX20 KWBC 171405 VOLCANIC ASH ADVISORY ISSUED: 2003APR17/1415Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2003/420 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. UPPER AIR SOUNDING. ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: NIL OBS ASH CLOUD: NIL FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH CAN NOT BEEN DETECTED IN SATELLITE IMAGERY. HOWEVER WIDESPREAD CLOUDINESS IN THE EASTERN CARIBBEAN MAY MAKE IT DIFFICULT TO OBSERVE LOW LEVEL ASH. THERE HAS BEEN NO HOTSPOT OBSERVED IN SHORTWAVE IMAGERY FOR AT LEAST THE PAST 12 HOURS. NEXT ADVISORY: NO FURTHER ADVISORIES NNNN