FVXX21 KWBC 291930 VOLCANIC ASH ADVISORY ISSUED: 2002SEP29/1930Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M). . ADVISORY NUMBER: 2002/136 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. MONTSERRAT VOLCANO OBSERVATORY . ERUPTION DETAILS: STEAM AND ASH EMISSION AT 29/1910Z . OBS ASH DATE/TIME: 20/1915Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL120 MOVING NW 15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED A PYROCLASTIC FLOW OF ASH AND STEAM AT 1910Z. THE ASH IS ESTIMATED TO FL120 MOVING TOWARDS THE NORTHWEST. CLOUDS COVER THE REGION AROUND THE VOLCANO MAKING ANY DETECTION OF ASH FROM SATELLITE DIFFICULT. . NEXT ADVISORY: WILL BE ISSUED BY 2002SEP30/0130Z . NNNN