FVXX20 KWBC 222240
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2240 UTC 22 MAR 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-056    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: GOES-8 VISIBLE IMAGERY. MONTSERRAT VOLCANO
OBSERVATORY. 
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ERUPTION DETAILS: ASH VENTING EVENT AROUND 22/1445 UTC AND 22/2230
UTC.
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DETAILS OF ASH CLOUD: THE SMALL LOW LEVEL ASH PLUME PREVIOUSLY SEEN
IN IMAGERY HAS BECOME TO FAINT TO DETECT ANY LONGER. HOWEVER THE
VOLCANO OBSERVATORY HAS JUST CALLED WITH ANOTHER EVENT AT 2230 UTC
BUT BECAUSE OF CLOUD COVER THEY COULD NOT ESTIMATE THE HEIGHT OF THE
ASH.  
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TRAJECTORY: ASH BELOW FL100 WILL MOVE WEST TO NORTHWEST AROUND 15 TO
20 KNOTS. ASH BETWEEN FL180 AND FL300 WILL MOVE EAST AROUND 20 TO 50
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 STATEMENT WILL BE ISSUED AROUND 22/2300 WITH SATELLITE
IMAGERY UPDATE INFORMATION.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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