FVXX21 KWBC 211000 VOLCANIC ASH ADVISORY ISSUED: 2002OCT21/1000Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: MONTSERRAT . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2002/161 . INFORMATION SOURCE: GOES-8 IMAGERY. . MONTSERRAT VOLCANO OBSERVATORY. UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: ONGOING ASH VENTING. . OBS ASH DATE/TIME: 20/2015Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL060 MOVING W AT 5 TO 10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH NOT OBSERVED IN INFRARED OR MULTISPECTRAL IMAGERY. A PLUME OF ASH WAS OBSERVED IN THE LAST VISIBLE IMAGERY AT 20/2015Z. . NEXT ADVISORY: WILL BE ISSUED BY 2002OCT21/1600Z. . NNNN