FVXX22 KWBC 170700
VOLCANIC ASH ADVISORY 
ISSUED 0700 UTC 17 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-143    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: GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL IMAGERY.  17/0000 UTC GUADELOUPE UPPER AIR
SOUNDING. WIND FORECAST FROM THE AVIATION MODEL. 
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ERUPTION DETAILS: ROCKFALLS AND SMALL PYROCLASTIC FLOWS.
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DETAILS OF ASH CLOUD: THROUGH 16/1815 UTC AN ASH PLUME TO
FL070 WAS OBSERVED EXTENDING FROM THE SUMMIT TOWARD THE WEST. 
ASH HAS NOT BEEN SEEN IN SATELLITE IMAGERY SINCE NIGHTFALL
WITH ONLY INFRARED AND MULTISPECTRAL IMAGERY AVAILABLE. 
HOWEVER IT IS POSSIBLE THAT IN DAYLIGHT WHEN VISILBE SATELLITE
IMAGERY IS AGAIN AVAILABLE ASH WILL BE SEEN.  
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TRAJECTORY: ANY ASH AT OR BELOW FL070 WILL MOVE TOWARD THE
WEST AT ABOUT 20 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 17/1300 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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