FVXX20 KWBC 181230 VOLCANIC ASH ADVISORY ISSUED: 2001JAN18/1230Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/64 INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. 00Z UPPER AIR SOUNDING FROM GUADELOUPE. 6 HOUR WIND FORECAST FROM 00Z AVIATION MODEL. . ERUPTION DETAILS: ROCKFALLS PRODUCING LOW LEVEL ASH. . DETAILS OF ASH CLOUD: LATEST SHORTWAVE IMAGERY THROUGH 18/1145Z SHOWS A NEARLY CONTINUOUS HOT SPOT OVER THE VOLCANO. EARLY VISIBLE IMAGERY SHOWS EXTENSIVE CLOUDINESS OVER THE VOLCANO AND AREAS TO THE WEST. IT IS DIFFICULT TO DETERMINE IF THERE IS AN ASH PLUME. WE WILL CONTINUE TO MONITOR THE VOLCANO AND SEND A MESSAGE IF A PLUME BECOMES EVIDENT IN IMAGERY. . TRAJECTORY: ANY ASH BELOW FL070 WILL MOVE TOWARD THE WEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 18/1830. . 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. . KARST . NNNN