FVXX20 KWBC 280830
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0830 UTC 28 JULY 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-189    WEST INDIES 16.7N 62.2W
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000 FT (915M)
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SOURCES OF INFORMATION: INFRARED SATELLITE IMAGERY...0000 UTC
GUADELOUPE UPPER AIR DATA

ERUPTION DETAILS:  ERUPTION OCCURRED AT ABOUT 28/0220 UTC.
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DETAILS OF ASH CLOUD: AN AREA OF THICK ASH ESTIMATED AT FL150 WAS
LOCATED 15 KM (8 NMI) EITHER SIDE OF A LINE FROM 15.9N63.1W TO
15.8N63.3W TO 15.7N63.5W.  A THINNER AND MORE DIFFUSE AREA OF ASH
ESTIMATED AT FL050 WAS LOCATED 15 KM (8 NMI) EITHER SIDE OF A LINE
FROM 15.7N63.5W TO 16.2N63.8W TO 16.3N63.8W TO 16.4N63.8W.
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TRAJECTORY: ASH AT FL150 WAS MOVING TOWARDS THE SOUTHWEST AT 15 KTS.
ASH AT FL050 WAS MOVING TOWARDS THE WEST AT NEAR 20 KNOTS.
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REAL TIME SATELLITE IMAGERY ALONG WITH 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/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE LATEST SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED AROUND 28/1430 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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