FVXX20 KWBC 062030 VOLCANIC ASH ADVISORY ISSUED: 2000DEC06/2030Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2000/316 INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. MONTSERRAT VOLCANO OBSERVATORY . ERUPTION DETAILS: ROCKFALLS . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 2015Z SHOWS EXTENSIVE CLOUDS IN THE AREA OBSCURING ANY ASH. A FAINT LOW LEVEL PLUME WAS OBSERVED AT 1645 UTC TO THE WEST-NORTHWEST OF THE VOLCANO ESTIMATED AT BETWEEN FL050 AND FL070 BEFORE THE CLOUDS MOVED IN. THE MONTSERRAT VOLCANO OBSERVATORY REPORTED THAT ROCKFALL ACTIVITY HAS DECREASED SINCE YESTERDAY WITH MOSTLY STEAM AND SOME SLIGHT AMOUNTS OF ASH STILL BEING EMITTED. . TRAJECTORY: WEST-NORTHWEST AT 15-20 KNOTS. OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 06/0230 UTC. 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