FVXX20 KWBC 200500
VOLCANIC ASH ADVISORY
ISSUED 0500 UTC 20 SEP 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-254          WEST INDIES 1643N 6211W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
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SOURCES OF INFORMATION: INFRARED AND MULTISPECTRAL SATELLITE
IMAGERY.  20/0000 UTC GUADELOUPE UPPER AIR SOUNDING.
WINDS FORECAST FROM THE AVIATION MODEL.
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ERUPTION DETAILS: LOW LEVEL ASH EMISSIONS.
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DETAILS OF ASH CLOUD: NO ASH WAS DETECTED IN INFRARED AND
MULTISPECTRAL IMAGERY THROUGH 20/0315 UTC. THE ASH PLUME SEEN
IN VISIBLE IMAGERY EARLIER TODAY EXTENDED TO THE WEST
APPROXIMATELY 111 KM (60 NMI) AND WAS 12 KM (6 NMI) WIDE. THE
ASH WAS ESTIMATED BELOW FL100.
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TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL100 WOULD MOVE
TOWARD THE WEST AT ABOUT 10 TO 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 20/1100 UTC.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN
ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT
INTERNET URL ADDRESS  
HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWER CASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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CLARK
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