FVXX22 KWBC 202145
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2145 UTC 20 SEPT 1999 BY THE WASHINGTON VAAC 
.
SOUFRIERE HILLS 99-220    WEST INDIES 16.7N 62.2W  
.
BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000 FT (915M)
.
SOURCES OF INFORMATION:  MONTSERRAT VOLCANO OBSERVATORY.
.
ERUPTION DETAILS: APPROXIMATELY 20/2045 UTC TO FL120.
.
DETAILS OF ASH CLOUD: THE MVO REPORTS AN ERUPTION OF SOUFRIERE HILLS
TO FL120.  SATELLITE IMAGERY THRU 2115 UTC SHOWED A NARROW PLUME OF
ASH MOVING TO THE NORTHEAST FROM THE VOLCANO. THE LEADING EDGE OF
THE PLUME IS AT 16.9N 62.0W AND IS 10 KM (5 NMI) WIDE. THE ASH IS
APROXIMATELY 22 KM (12 NMI) FROM THE VOLCANO.
.
TRAJECTORY: ASH UP TO FL120 WILL MOVE TO THE NORTHEAST AT 15 TO 20
KTS.
.
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  
www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
.
OUTLOOK:  SEE SIGMETS.
.
THE NEXT MESSAGE WILL BE ISSUED AT 21/0345 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN"Attached Graphic Map Depicting Ash" 

""