FVXX20 KWBC 090700 VOLCANIC ASH ADVISORY ISSUED: 2001FEB09/0700Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/81 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. SIX HOUR AVN MODEL FORECAST. . ERUPTION DETAILS: ROCKFALLS PRODUCING ASH. . DETAILS OF ASH CLOUD: INFRARED SATELLITE IMAGERY THROUGH 09/0615Z DOES NOT DETECT AN ASH PLUME. THE LAST VISIBLE IMAGE OF THE DAY AT 08/2115Z SHOWED A LOW LEVEL PLUME STRETCHING TO THE WEST SOUTHWEST FROM THE VOLCANO. THE ASH AT THAT TIME WAS ESTIMATED BELOW FL050. WE WILL MONITOR THE EARLY VISIBLE PICTURES THIS MORNING TO SEE IF ASH CONTINUES TO BE EMITTED FROM THE VOLCANO. . TRAJECTORY: ASH UP TO FL050 WILL MOVE TOWARDS THE WEST SOUTHWEST AT 15-20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 09/1300Z. . 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