FVXX20 KWBC 291030 VOLCANIC ASH ADVISORY ISSUED 1030 UTC 29 SEP 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-265 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. UPPER AIR FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: LOW LEVEL ASH EMISSIONS. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 29/0945 UTC DUE TO THE WEATHER CLOUDS IN THE AREA AND THE DIFFICULTY OF DETECTING LOW LEVEL ASH AT NIGHT. NO HOTSPOT IS SEEN IN SHORTWAVE INFRARED IMAGERY. AT 28/1702 UTC AN ASH PLUME BELOW FL060 WAS OBSERVED EXTENDING FROM THE SUMMIT TOWARD THE NORTH NORTHEAST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BELOW FL060 WOULD MOVE TOWARD THE NORTH AT LESS THAN 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUE BY 29/1630 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