FVXX20 KWBC 130030 VOLCANIC ASH ADVISORY ISSUED: 2001JAN13/0030Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/42 INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. AVIATION MODEL WIND FORECAST. PIARCO SIGMET. . ERUPTION DETAILS: ROCKFALLS PRODUCING LOW LEVEL ASH. . DETAILS OF ASH CLOUD: LOW LEVEL ASH CAN NOT BE SEEN BY THE 4 KM RESOLUTION INFRARED IMAGERY. HOWEVER A PERSISTENT HOT SPOT CAN BE SEEN...INDICATING A CONTINUING INCREASE IN ACTIVITY. ANY ASH BEING PRODUCED IS ESTIMATED TO BE BELOW FL100 AND MOWING WEST SOUTHWEST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH TO FL100 IS MOVING TO THE WEST SOUTHWEST AT ABOUT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 13/0630Z. . 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. . HUGHES . NNNN