FVXX20 KWBC 102230 VOLCANIC ASH ADVISORY ISSUED: 2001JAN10/2230Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/33 INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. 1200Z UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: OCCASIONAL ROCKFALLS THAT PRODUCE LOW LEVEL ASH. . DETAILS OF ASH CLOUD: NO ASH IS OBSERVED IN IMAGERY THROUGH 2145Z ALTHOUGH A HOTSPOT IS OBSERVED IN SHORTWAVE IMAGERY. ASH HAS BECOME DIFFICULT TO DISCERN DUE TO THE INCREASING HIGH CLOUDS IN THE AREA. EARLIER ASH WAS OBSERVED TO THE WEST OF THE VOLCANO MOVING TOWARD THE WEST AT 10 TO 15 KNOTS. TRAJECTORY: ASH BETWEEN THE SUMMIT AND FL100 IS MOVING TOWARD THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 10/0430Z. . 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