FVXX20 KWBC 182300
VOLCANIC ASH ADVISORY
ISSUED 2300 UTC 18 SEP 2000 BY THE WASHINGTON VAAC
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SOUFRIERE HILLS 00-249          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: VISIBLE...INFRARED AND MULTISPECTRAL
SATELLITE IMAGERY.  UPPER LEVEL WINDS FROM AVIATION MODEL.
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ERUPTION DETAILS: PERIODIC EXPLOSIONS AND EMISSIONS
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DETAILS OF ASH CLOUD: VISIBLE SATELLITE IMAGERY THROUGH 2045
UTC SHOWS A PLUME OF ASH MOVING TO THE WEST OF THE VOLCANO.
 THE LEADING EDGE OF THE PLUME WAS AT 1643N 6247W WHICH IS 65
KM (35 NMI) FROM THE SUMMIT AND HAS AN AVERAGE WIDTH OF 8 KM
(4 NMI).  THE PLUME IS ESTIMATED BELOW FL100.
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TRAJECTORY: TOWARDS THE WEST AT 15 TO 20 KNOTS. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 19/0500 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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KARST
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NNNN"Attached Graphic Map Depicting Ash" 

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