FVXX21 KWBC 120546 VOLCANIC ASH ADVISORY ISSUED: 2003MAY12/0600Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/508 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. MONTSERRAT VOLCANO OBSERVATORY. ERUPTION DETAILS: EMISSION OF GASES AND ASH. OBS ASH DATE/TIME: 12/0515Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL050 W AT 15-20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: ASH IS NOT IDENTIFIABLE FROM SATELLITE DATA AS WEATHER CLOUDS CONTINUE TO OBSCURE THE AREA. THE MONTSERRAT VOLCANO OBSERVATORY INDICATED AROUND 0230Z THERE WAS AN INCREASE IN SEISMIC AND PYROCLASTIC ACTIVITY. BUT AT THE PRESENT MOMENT ACTIVITY HAS SUBSIDED AND IS AT NORMAL LEVELS. ANALYST..KIBLER NEXT ADVISORY: WILL BE ISSUED BY 2003MAY12/1200Z. NNNN