FVXX20 KWBC 071730
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1730 UTC 07 MAR 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-036    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: MONTSERRAT VOLCANO OBSERVATORY...1200 UTC
UPPER AIR REPORT FROM GUADELOUPE...GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY...PILOT REPORT
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ERUPTION DETAILS: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED AN
EXPLOSIVE EVENT OCCURRED AT APPROXIMATELY 07/1635 UTC.
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DETAILS OF ASH CLOUD: THE ASH CLOUD EXTENDED 15 KM (8 NMI) TO THE
SOUTH OF THE SUMMIT AND WAS 17 KM (9 NMI) WIDE AT 1645 UTC.  IT WAS
BOUNDED BY 16.8N/62.2W 16.7N/62.1W 16.6N/62.1W 16.7N/62.3W
16.8N/62.2W.  A PILOT REPORTED ASH TO FL160 MOVING SOUTHWEST AT 1707
UTC.  THE MAXIMUM HEIGHT IS OF THE ASH CLOUD IS ESTIMATED TO BE BELOW
FL220.
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TRAJECTORY: TOWARD THE SOUTHWEST AT 5 KTS TO 10 KTS.  
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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 AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 07/2330.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

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