FVXX20 KWBC 112100
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1800 UTC 11 JAN 1999 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 99-004    WEST INDIES 16.7N 62.2W  
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BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000FT (915M)
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SOURCES OF INFORMATION:  GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY.  1200 UTC GUADELOUPE SOUNDING. MONTSERRAT VOLCANO OBSERVATORY
REPORT
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ERUPTION DETAILS:   ERUPTED ON JAN 11 AT 2033 UTC.
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DETAILS OF ASH CLOUD; THE MONTSERRAT VOLCANO OBSERVATORY REPORTED A LOW
LEVEL ERUPTION OF THE SOUFRIERE HILLS VOLCANO FOR 1 MINUTE TO ABOUT
FL100. ASH IS NOT YET VISIBLE ON SATELLITE IMAGERY BUT A SHOT SPOT IS
VISIBLE IN SHORTWAVE INFRARED IMAGERY. ASH WAS REPORTED MOVING WEST.
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TRAJECTORY: THE 1200 UTC GUADELOUPE SOUNDING INDICATES THAT ASH AT
FL100 WOULD MOVE TO THE WEST AT 10-15 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 LATEST SIGMETS.
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NEXT ADVISORY WILL BE ISSUED AROUND 12/03000 UTC OR SOONER IF
ADDITIONAL INFORMATION BECOMES AVAILABLE.      
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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