FVXX20 KWBC 281715
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1700 UTC 28 JULY 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-191    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: 28/1645 UTC VISIBLE..INFRARED AND
MULTISPECTRAL IMAGERY.  28/1200 UTC GUADELOUPE UPPER SOUNDING
AND MVO.

ERUPTION DETAILS: NEW ERUPTION OCCURRING AROUND 28/1635 UTC.
             LAST NIGHT'S ERUPTION OCCURRED AT ABOUT 28/0220 UTC.
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DETAILS OF ASH CLOUD: MVO REPORTS A NEW ERUPTION OCCURRING AROUND
28/1635 UTC WITH ESTIMATED HEIGHT OF THE ASH TO APPROXIMATELY
FL1200.  THE LATEST VISIBLE SATELLITE IMAGERY AT 1645 UTC SHOWS A
VERY SMALL PLUME NEAR THE SUMMIT.  AT THIS TIME WE ARE UNABLE TO
DETERMINE A DIRECTION OF MOVEMENT.
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ASH FROM LAST NIGHT'S ERUPTION IS NO LONGER VISIBLE ON THE SATELLITE
IMAGERY.  IT WAS LAST SEEN ON THE SATELLITE IMAGERY AT 28/1615 UTC
NEAR 14.8N 66.0W..MOVING TOWARD THE WEST AT 15-20 KTS.
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TRAJECTORY: THIS MORNING'S UPPER AIR WIND ANALYSIS WOULD SUGGEST ANY
NEW ASH AT OR NEAR FL100 WOULD MOVE TOWARD SOUTHWEST AROUND 20 KTS.
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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 ONCE ASH MOVEMENT CAN BE DETERMINED
AND A GRAPHICAL PRODUCT CAN BE PRODUCED.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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