FVXX20 KWBC 080030 VOLCANIC ASH ADVISORY ISSUED: 2001JAN08/0030Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/20 INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: CONTINUED ROCKFALLS PRODUCING LOW LEVEL ASH. . DETAILS OF ASH CLOUD: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 07/2345Z. HOWEVER SHORTWAVE INFRARED IMAGERY HAS SHOWN AN INTERMITTENT HOT SPOT OVER THE PAST 3 HRS. DURING DAYLIGHT HOURS A WESTWARD MOVING LOW LEVEL ASH PLUME TO FL080 WAS DETECTED IN VISIBLE IMAGERY. SUCH LOW LEVEL ASH IS OFTEN NOT SEEN IN INFRARED OR MULTISPECTRAL IMAGERY. . TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL080 WILL MOVE TOWARD THE WEST AT ABOUT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 08/0630Z. . 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