FVXX20 KWBC 130700 VOLCANIC ASH ADVISORY ISSUED: 2001FEB13/0700Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/97 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 0000Z UPPER AIR SOUNDING FROM GUADELOUPE. 6 HOUR WIND FORECAST FROM 0000Z AVIATION FORECAST MODEL. . ERUPTION DETAILS: ROCKFALLS PRODUCING ASH. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY 0645Z SHOWED A POSSIBLE ASH PLUME EXTENDING 100 KM (54 NMI) TO THE WEST SOUTHWEST OF THE VOLCANO. HOWEVER IT WAS NOT CONCLUSIVE THAT THIS WAS AN ASH PLUME AND NOT CLOUD. NO HOT SPOT HAS BEEN DETECTED IN THE PAST 6 HOURS. ANY ASH IS ESTIMATED TO BE BELOW FL070. . TRAJECTORY: ANY ASH BELOW FL070 WOULD MOVE TOWARD THE WEST SOUTHWEST AT 25 TO 30 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 13/1300Z. . 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. . RUMINSKI . NNNN