FVXX20 KWBC 181600 VOLCANIC ASH ADVISORY ISSUED: 2003JAN18/1225Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2003/065 INFORMATION SOURCE: GOES-8 IMAGERY. 12Z GUADELOUPE UPPER AIR SOUNDING. ERUPTION DETAILS: NEW EMISSION OF ASH AND STEAM. OBS ASH DATE/TIME: 18/1532Z. OBS ASH CLOUD: SFC/FL060 5 NMI LINE EXTENDING BETWEEN N1643W06211 N1652W06243. ASH IS MOVING WEST AT 15 TO 20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH EXTENDS ABOUT 35 NMI TO THE WEST OF THE SUMMIT. NEXT ADVISORY: WILL BE ISSUED BY 2003JAN18/2200Z. NNNN