FVXX20 KWBC 050400
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0400 UTC 05 APR 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-090    WEST INDIES 16.72N 62.18W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915 M)
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SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY. GOES-8
INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. 0000 UTC GUADELOUPE
SOUNDING. 00 UTC GOES-8 HIGH DENSITY WINDS.
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ERUPTION DETAILS: ERUPTION AT 05/0315 UTC.
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DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTS AN
EMISSION OF ASH AT APPROX 0315 UTC. GOES-8 MULTISPECTRAL IMAGERY
THROUGH 0332 UTC SHOWS AN ASH CLOUD IN A LINE 32 KM (17 NMI) LONG
AND 9 KM (5 NMI) WIDE FROM 16.70N 62.19W TO 16.68N 61.89W. THE ASH
IS ESTIMATED TO BE AT OR BELOW FL150.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH BETWEEN FL010 AND
FL150 TO MOVE EAST AT 10 TO 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 FOR THIS EVENT WILL BE ISSUED BY 05/1000 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

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