FVXX20 KWBC 240630 VOLCANIC ASH ADVISORY ISSUED 0630 UTC 24 NOV 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-309 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. AVIATION MODEL UPPER AIR WIND FORECAST. . ERUPTION DETAILS: LOW LEVEL ASH PLUME IN VISIBLE IMAGERY. . DETAILS OF ASH CLOUD: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 24/0545 UTC. DURING DAYLIGHT HOURS AN ASH PLUME ESTIMATED BELOW FL070 WAS VISIBLE EXTENDING TO THE WEST NORTHWEST. SUCH LOW LEVEL ASH IS OFTEN UNDETECTABLE FROM SATELLITE WITHOUT VISIBLE IMAGERY. . TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL070 WOULD MOVE TOWARDS THE WEST SOUTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 24/1230 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. . CLARK . NNNN