FVXX20 KWBC 041330 VOLCANIC ASH ADVISORY ISSUED: 2001AUG04/1330Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/199 . INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. . ERUPTION DETAILS: MINOR ERUPTION SEEN AT AROUND 0700Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 1302Z SHOWS THAT THE ASH FROM THE EARLIER ERUPTION CAN NOT BE DETECTED. AT 0700Z ASH HAD BEEN OBSERVED GOING IN TWO SEPARATE DIRECTIONS BUT NOW BOTH ASH CLOUDS HAVE BECOME TOO THIN TO BE OBSERVED IN SATELLITE IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY REMAINING ASH FROM FL100 TO FL200 WOULD MOVE NORTHWEST AT 5 TO 10 KNOTS WHILE ANY ASH ABOVE FL320 WOULD MOVE NORTHEAST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THIS WILL BE THE LAST ADVISORY FOR THIS EVENT. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST . NNNN