FVXX22 KWBC 242230 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2230 UTC 24 OCTOBER 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-237 WEST INDIES 16.72N 62.18W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY...GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY...12 UTC UPPER-AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: ERUPTION OCCURRED AT 24/1615 UTC. . DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED A SMALL TO MODERATE ERUPTION OF THE SOUFRIERE HILLS VOLCANO. THE LATEST GOES-8 SATELLITE IMAGERY AT 2145 UTC SHOWS THIN HIGH LEVEL CLOUDS OVER THE AREA. WE ARE UNABLE TO DETECT ANY ASH. . TRAJECTORY: ASH BELOW FL050 WOULD MOVE TO THE NORTH AT 5 TO 10 KNOTS. ASH BETWEEN FL050/150 WOULD MOVE TOWARD THE NORTHEAST AT ABOUT 10 KNOTS. . 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 http://www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 25/0500 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . BROWN . NNNN