FVXX20 KWBC 270200 VOLCANIC ASH ADVISORY ISSUED: 2000DEC27/0200Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2000/339 INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 27/0000Z GUADELOUPE UPPER AIR SOUNDING. . ERUPTION DETAILS: ASH PLUME PRODUCED BY ROCKFALLS. . DETAILS OF ASH CLOUD: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 27/0115Z. HOWEVER LOW LEVEL ASH SUCH AS WAS PRESENT DURING DAYLIGHT HOURS IS NOT ALWAYS DETECTABLE ON INFRARED AND MULTISPECTRAL IMAGERY. SHORTWAVE INFRARED IMAGERY SHOWED A PRONOUNCED HOT SPOT OVER THE VOLCANO THROUGH 26/2215Z. . TRAJECTORY: ASH UP TO FL070 WOULD MOVE TOWARD SOUTHWEST AT ABOUT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 27/0800Z. . 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