FVXX21 KWBC 300048
VOLCANIC ASH ADVISORY
ISSUED: 2003APR30/0045Z VAAC: WASHINGTON
VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1643W06211 AREA: CARIBBEAN
SUMMIT ELEVATION: 3000 FT (915 M)
ADVISORY NUMBER: 2003/459
INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST.
MONTSERRAT VOLCANO OBSERVATORY.
ERUPTION DETAILS: CONTINUED EMISSION OF GASES AND ASH.
OBS ASH DATE/TIME: 30/0015Z
OBS ASH CLOUD: SFC/FL070 10 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1643W06211 N1626W06328. ASH IS MOVING SW 10-15 KNOTS.
FCST ASH CLOUD +6H: SEE SIGMETS
REMARKS: FREQUENT HOT SPOT ACTIVITY CAN BE SEEN ON SHORTWAVE
IMAGERY THROUGH 30/0015Z. THE VISIBLE ASH PLUME EXTENDS
APPROXIMATELY 76 NM TO THE SW OF THE SUMMIT. THIS PLUME HAS BEEN
GRADUALLY CHANGING DIRECTION FROM DUE WEST TO SOUTHWEST OVER THE
PAST THREE HOURS. DUE TO THIS MOVEMENT THIN ASH THAT IS NOT
DETECTABLE IN SATELLITE IMAGERY MAY REMAIN NORTH OF THE CURRENT
PLUME.
NEXT ADVISORY: WILL BE ISSUED BY 2003APR30/0100Z.
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"Attached Graphic Map Depicting Ash Only"
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