FVXX20 KWBC 202235
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2235 UTC 20 May 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-131    WEST INDIES 16.7N 62.2W  
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000FT (915M)
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SOURCES OF INFORMATION: GOES 8 INFRARED SATELLITE IMAGERY...PIARCO
MWO...1200 UTC GUADELOUPE SOUNDING DATA
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ERUPTION DETAILS: ERUPTION AT 20/2140 UTC
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DETAILS OF ASH CLOUD: A SMALL ASH CLOUD COULD BE SEEN IN SATELLITE
IMAGERY AT 2202 UTC CENTERED NEAR 16.7N 62.2W.  THE CLOUD EXTENDED
OUTWARD FOR 10 KM (5 NMI) FROM THIS POINT IN ALL DIRECTIONS. BY 2225
UTC THE ASH CLOUD WAS OBSCURED BY HIGH LEVEL METEOROLOGICAL CLOUD.
BASED ON 1200 UTC SOUNDING DATA FROM GUADELOUPE AND COORDINATION
WITH THE PIARCO MWO THE HEIGHT IS ESTIMATED TO BE BELOW FL150.
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TRAJECTORY: TOWARD THE WEST AT 20 KNOTS.
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THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY
A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS
www.ssd.noaa.gov/VAAC/messages.html
(all lower case except /VAAC/)
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED AROUND 21/0430.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

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