FVXX21 KWBC 090045 VOLCANIC ASH ADVISORY ISSUED: 2001DEC09/0045Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/268 . INFORMATION SOURCE: GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. 08/12Z UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: LOW LEVEL ASH EMISSION STARTING BEFORE 08/1245Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 0015Z SHOWS NO CURRENT INDICATION OF AN ASH PLUME. THE LAST VISIBLE IMAGE AT 2045Z DID SHOW A VERY FAINT PLUME TO THE WEST OF THE ISLAND. AT THAT TIME THE PLUME WAS VERY THIN AND EXTENDED TO A POINT NEAR 1638N 6249W WHICH IS APPROXIMATELY 70KM (40NMI) FROM THE SUMMIT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR BELOW FL060 WILL MOVE TOWARDS THE WEST AT 15 TO 20KTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: WILL BE ISSUED BY 2001DEC09/0700Z . . NNNN