FVXX20 KWBC 230725
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0725 UTC 23 May 1999 BY THE WASHINGTON VAAC 
.
SOUFRIERE HILLS 99-137    WEST INDIES 16.7N 62.2W  
.
BACKGROUND:    SOUFRIERE HILLS MONTSERRAT (1600-05)
               SUMMIT HEIGHT 3000FT (915M)
.
SOURCES OF INFORMATION: GOES 8 INFRARED  MULTISPECTRAL SATELLITE
IMAGERY MONTSERRAT VOLCANO OBSERVATORY  ...0000 UTC GUADELOUPE
SOUNDING...
.
ERUPTION DETAILS: ERUPTION AT 23/0645 UTC.
.
DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTS
THAT AN ERUPTION OF THE SOUFRIERE HILLS VOLCANO OCCURRED
APPROXIMATELY 0645 UTC. HEIGHT ESTIMATE OF THE PLUME IS UP TO FL100
AND RISING.  MULTISPECTRAL IMAGERY THROUGH 0645 UTC SHOWS NO ASH OR
HOT SPOT.  LATEST GOES-8 IR SATELLITE IMAGERY AVAILABLE IS 0702 UTC
AND SHOWS POSSIBLE LOW TO MID LEVEL ASH OVER AND SOUTHWEST OF THE
ISLAND WITHIN 10 KM OF THE VOLCANO.
. 
TRAJECTORY: ASH AT FL100 WOULD MOVE WSW AT ABOUT 12KT.  BELOW FL100
ASH WOULD MOVE WEST AT ABOUT 8 KTS.
.
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/)
.
OUTLOOK: SEE SIGMETS.
.
THE NEXT MESSAGE WILL BE ISSUED BY 23/1330 UTC OR SOONER IF
ADDITIONAL INFORMATION BECOMES AVAILABLE.         
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN