FVXX20 KWBC 231315 VOLCANIC ASH ADVISORY ISSUED: 2002NOV21/1315Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2002/191 INFORMATION SOURCE: GOES-8 IMAGERY. UPPER AIR SOUNDING FROM LE RAIZET. ERUPTION DETAILS: CONTINUOUS LOW LEVEL EMISSIONS. OBS ASH DATE/TIME: 23/1245Z. OBS ASH CLOUD: SFC/FL050 10 NMI LINE OF ASH EXTENDING BETWEEN N1643W06211 N1644W06409. PLUME IS 110 NMI LONG. ASH IS MOVING WEST AT 20 TO 25 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: HEIGHT ESTIMATED AT OR BELOW FL050. NEXT ADVISORY: WILL BE ISSUED BY 2002NOV23/1900Z. NNNN