FVXX20 KWBC 160030 VOLCANIC ASH ADVISORY ISSUED: 2001JAN16/0030Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/54 INFORMATION SOURCE: GOES-8 VISIBLE ... INFRARED AND MULTISPECTRAL IMAGERY. 12Z GUADELOUPE SOUNDING. AVIATION MODEL WINDS FORECAST. . ERUPTION DETAILS: ROCKFALLS PRODUCING LOW LEVEL ASH. . DETAILS OF ASH CLOUD: GOES-8 INFRARED SATELLITE IMAGERY THROUGH 0015Z SHOWS NO ASH ALTHOUGH THIS TYPE OF ERUPTION USUALLY CAN NOT BE SEEN IN INFRARED IMAGERY. THE LAST USEABLE VISIBLE IMAGE OF THE DAY AT 2030Z SHOWED ASH EXTENDING ABOUT 55KM (30NMI) TO THE WEST OF THE VOLCANO. THE ASH PLUME WAS UP TO 25KM (15NMI) WIDE. ASH WAS ESTIMATED BELOW FL050. . TRAJECTORY: ASH BELOW FL050 WOULD MOVE WEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 16/0630. . 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