FVXX20 KWBC 060730 VOLCANIC ASH ADVISORY ISSUED: 2000DEC06/0730Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2000/313 INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 00Z UPPER AIR SOUNDING FROM GUADELOUPE . ERUPTION DETAILS: ROCKFALLS. . DETAILS OF ASH CLOUD: NO ASH CAN BE DETECTED IN SATELLITE IMAGERY THROUGH 0702Z. ASH THAT WAS SEEN IN VISIBLE IMAGERY DURING THE DAY WAS ESTIMATED TO BE BELOW FL070. SUCH LOW LEVEL PLUMES ARE SELDOM SEEN IN INFRARED OR MULTISPECTRAL IMAGERY. A PRONOUNCED HOT SPOT CONTINUES TO BE PROMINENT IN NEAR INFRARED SATELLITE IMAGERY. . TRAJECTORY: ANY ASH THAT MIGHT EXIST BELOW FL070 WOULD MOVE TOWARDS THE WEST NORTHWEST AT 5 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 06/1330Z. . 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. . RUMINSKI . NNNN