FVXX20 KWBC 011800
VOLCANIC ASH ADVISORY
ISSUED 1800 UTC 01 AUG 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-111          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. 01/1200 UTC SOUNDING FROM GUADELOUPE.
01/1800 UTC FORECAST UPPER WINDS FROM THE 01/1200 UTC NCEP
MODEL RUNS. 
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ERUPTION DETAILS: FAINT LOW LEVEL PLUME EMANATING FROM THE
ISLAND.
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DETAILS OF ASH CLOUD: GOES-8 VISIBLE IMAGERY THROUGH 1745 UTC
INDICATED A FAINT LOW LEVEL PLUME COMING FROM MONTSERRAT. THIS
ASH WAS MOVING TOWARD THE WEST.  THE PLUME EXTENDS APPROX (43
NMI) FROM POINT 1643N 6211W TO POINT 1640N 6256W.  THE PLUME
IS ABOUT 10 KM (5 NMI) WIDE.  ASH IS ESTIMATED TO BE BELOW
FL080 BASED ON UPPER AIR SOUNDINGS AND FORECAST.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR BELOW
FL100 TO MOVE WEST SOUTHWEST AT 5 TO 10 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 02/0000 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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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HUGHES/STREETT
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NNNN"Attached Graphic Map Depicting Ash" 

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