FVXX20 KWBC 171335
VOLCANIC ASH ADVISORY
ISSUED 1330 UTC 17 SEP 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-243          WEST INDIES 1643N 6211W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
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SOURCES OF INFORMATION: THE MONTSERRAT VOLCANO OBSERVATORY.
GOES-8 IMAGERY. 17/1200 UTC SOUNDING FROM GUADELOUPE.
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ERUPTION DETAILS: MODERATE EXPLOSION AROUND 17/0340 UTC.
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DETAILS OF ASH CLOUD: THE MVO REPORTED THAT SINCE THE
EXPLOSION THIS MORNING THAT THERE HAS BEEN SO SIGNIFICANT
ACTIVITY SINCE. NOTHING CAN BE SEEN ON GOES-8 SATELLITE
IMAGERY DUE TO THE REMNANTS OF TD 12 MOVING WESTWARD THROUGH
THE LEEWARD ISLANDS. THE MVO REPORTS THAT THERE HAS BEEN AT
LEAST ONE EXPLOSION PER DAY AND THESE TYPICALLY OCCUR AT
NIGHT. THEREFORE THIS ADVISORY WILL CONTINUE AS LONG AS THERE
IS A CREDIBLE THREAT TO AVIATION IN THE AREA.  
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH FROM SUMMIT
LEVEL TO FL100 TO MOVE WEST AT 20 TO 30 KNOTS. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 17/1930 UTC.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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HUGHES
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