FVXX22 KWBC 220700
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0707 UTC 22 OCTOBER 1999 BY THE WASHINGTON VAAC 
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SOUFRIERE HILLS 99-228    WEST INDIES 16.72N 62.18W  
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000 FT (915M)
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SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY
(MVO)...GUADELOUPE UPPER AIR SOUNDING AND GOES-8 INFRARED AND
MULTISPECTRAL IMAGERY. 
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ERUPTION DETAILS: MVO REPORTS ERUPTION OCCURRED AT 21/2350 UTC.
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DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED AN
ERUPTION OF SOUFRIERE HILLS AT 21/2350 UTC.  RAINFALL ASSOCIATED
WITH TROPICAL STORM JOSE HAS RESULTED IN A COLLAPSE OF THE DOME WITH
SUBSEQUENT ASH VENTING.  ASH WAS REPORTED TO BE FALLING IN
COMMUNITIES NORTH OF THE SUMMIT. THE IMPLIED NORTHWARD MOTION OF THE
PLUME AND THE GUADELOUPE UPPER AIR SOUNDING SUGGESTED THAT THE ASH
CLOUD REACHED FL100.  THE OBSERVATORY INDICATED THAT ADDITIONAL DOME
COLLAPSES MAY OCCUR.  CURRENTLY..22/0615 UTC..THE AREA IS OBFUSCATED
IN THICK CLOUDINESS MAKING DETECTION OF ANY VOLCANIC ASH IMPOSSIBLE.
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TRAJECTORY: ANY ASH AT FL100 WOULD MOVE NORTH AT 20 TO 25 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  
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED AROUND 22/1300 UTC. 
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WALTER/NOAA/NESDIS/SAB
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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