FVXX20 KWBC 141215
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1215 UTC 14 APR 1999 BY THE WASHINGTON VAAC

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SOUFRIERE HILLS 99-107    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: INFRARED AND VISIBLE GOES-8 SATELLITE
IMAGERY...0000 UTC GUADELOUPE UPPER AIR DATA...MONTSERRAT VOLCANO
OBSERVATORY...AVIATION MODEL FORECAST. 
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ERUPTION DETAILS: INITIAL ERUPTION AT 14/0915 UTC.
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DETAILS OF ASH CLOUD: GOES 8 VISIBLE SATELLITE IMAGERY AT 1132 UTC
INDICATED ASH SPREADING IN SEVERAL DIRECTIONS FROM THE VOLCANO.
FROM THE SFC TO FL050 ASH IS BOUNDED BY POINTS 16.8N62.2W 16.8N62.5W
17.0N62.5W 17.0N62.2W.
FROM FL050 TO FL100 ASH EXTENDS 50 KM (27 NMI) TO THE NORTHEAST FROM
16.8N62.2W TO 17.2N62.0W AND IS 5 KM (2.7 NMI) WIDE.
FROM FL100 TO FL150 ASH EXTENDS 30 KM (16 NMI) TO THE SOUTHWEST FROM
16.7N62.2W TO 16.5N62.4W AND IS 25 KM (13.5 NMI) WIDE.
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TRAJECTORY: FROM THE SFC TO FL050 ASH IS MOVING TO THE NORTHWEST AT
10 KT OR LESS.
FROM FL050 TO FL100 THE ASH IS MOVING TO THE NORTHEAST AT 15 KT.
FROM FL100 TO FL150 THE ASH IS MOVING TO THE SOUTHWEST AT 10 KT.
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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 14/1800 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"