FVXX20 KWBC 151800   
VOLCANIC ASH ADVISORY
ISSUED 1800 UTC 15 SEP 2000 BY THE WASHINGTON VAAC
.
SOUFRIERE HILLS 00-235    WEST INDIES 1643N 6211W  
.
BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
.
SOURCES OF INFORMATION: VISIBLE...INFRARED AND MULTISPECTRAL
SATELLITE IMAGERY. UPPER LEVEL WIND DATA FROM THE AVIATION
MODEL.
.
ERUPTION DETAILS: ERUPTION AROUND 15/0500 UTC. 
.
DETAILS OF ASH CLOUD: VISIBLE SATELLITE IMAGERY THROUGH
15/1715 UTC SHOWS A PLUME OF ASH ESTIMATED AT FL100 EXTENDING
TO THE NORTHWEST OF THE VOLCANO.  THE LEADING EDGE OF THE
PLUME IS AT 1710N 6246W WHICH IS 81 KM (44 NMI) FROM THE
SUMMIT AND THE AVERAGE WIDTH OF THE PLUME IS 6 KM (3 NMI).
.
TRAJECTORY: ASH AT OR BELOW FL100 IS EXPECTED TO MOVE TOWARD 
THE NORTHWEST AT ABOUT 15 TO 20 KNOTS.
.
OUTLOOK: SEE SIGMETS.
.
THE NEXT ADVISORY WILL BE ISSUED BY 16/0000 UTC.
.
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/)
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
KARST
.
NNNN"Attached Graphic Map Depicting Ash" 

""