FVXX20 KWBC 201715 VOLCANIC ASH ADVISORY ISSUED 1715 UTC 20 SEP 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-256 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. 20/1200 UTC WINDS SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: LOW LEVEL ASH EMISSIONS. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1745 UTC DOES NOT INDICATE THE PRESENCE OF ASH AT THIS TIME. THE OBSERVATORY IS REPORTING SOME SMALL NEAR SUMMIT ACTIVITY. IMAGERY WILL BE MONITORED CLOSELY TODAY FOR ADDITIONAL ACTIVITY. TYPICAL ASH EMISSIONS HAVE BEEN BELOW FL100. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL100 WOULD MOVE WEST NORTHWEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE FINAL ADVISORY UNLESS ASH IS REPORTED OR DETECTED IN IMAGERY. . 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. . . NNNN