FVXX21 KWBC 151719
VOLCANIC ASH ADVISORY
ISSUED: 2004MAR15/1730Z   VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1643W06211   AREA: W.INDIES

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2004/43

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST  

ERUPTION DETAILS: ASH VENTING

OBS ASH DATE/TIME: 15/1702Z 

OBS ASH CLOUD: SFC/FL065 10-20 NM WIDE LINE BETWEEN
N1643W06211 - N1647W06630.  ASH IS MOVING W 20 KNOTS.  

FCST ASH CLOUD+6H: NOT AVBL

FCST ASH CLOUD+12H: NOT AVBL       

FCST ASH CLOUD+18H: NOT AVBL

REMARKS: AXIS OF MID-LEVEL CLOUDINESS IS TRANSVERSING THE
LEEWARD ISLANDS AND, ALONG WITH HIGH SUN ANGLE, IS OBSCURING
THE EXACT EXTENT OF THE PLUME.  HEIGHT CHANGED SLIGHTLY TO
REFLECT BETTER AGREEMENT BETWEEN OBSERVED AND GFS SOUNDING
DIRECTION.  VISIBLE SATELLITE IMAGERY SHOWS A ASH PLUME
EXTENDING FROM THE SUMMIT BUT IS MORE OBSCURED BY CLOUDS
FURTHER TOWARD THE WEST.  THE FAINT PLUME IS ABOUT 10-30 NM
WIDE DEPENDING ON THE DISTANCE FROM THE SUMMIT AND APPEARS
TO BE AT LEAST 250 NM LONG BEFORE IT BECOMES UNIDENTIFIABLE
SOUTH OF PUERTO RICO.  BALDWIN 

NEXT ADVISORY: WILL BE ISSUED BY 2004MAR15/2330Z.

NNNN

"Attached Graphic Map Depicting Ash Only" 

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