FVXX20 KWBC 200600
VOLCANIC ASH ADVISORY
ISSUED: 2002DEC20/0600Z VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS   1600-05
LOCATION: N1643W06211    AREA: CARIBBEAN

SUMMIT ELEVATION: 3000 FT (915M)

ADVISORY NUMBER: 2002/236
 
INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST 

ERUPTION DETAILS: ASH EMISSIONS
 
OBS ASH DATE/TIME: 20/0532Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA.  WINDS
SFC/FL100 MOVING SW 10 KNOTS. 
 
FCST ASH CLOUD +6H: SEE SIGMETS.
 
REMARKS: MULTISPECTRAL IMAGERY THROUGH 0532Z DOES NOT SHOW ASH
BUT SHORTWAVE INFRARED IMAGERY SHOWS A BRIGHT HOTSPOT AT THE
VOLCANO.  NUMERICAL WEATHER MODEL DATA SUGGESTS A WIND SHIFT IN
THE PAST FEW HOURS. IF THE MODEL DATA IS CORRECT ANY ASH BELOW
FL100 WOULD NOW BE EXPECTED TO MOVE TOWARD THE SW RATHER THAN SE
AS SEEN EARLIER.

NEXT ADVISORY: WILL BE ISSUED BY 2002DEC20/1200Z

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