FVXX23 KWBC 090610 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0610 UTC 09 DEC 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-267 WEST INDIES 16.7N 62.2W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY...MONTSERRAT VOLCANO OBSERVATORY...1200 UTC SOUNDING FROM GUADELOUPE... . ERUPTION DETAILS: ERUPTION AROUND 08/1715 UTC. . DETAILS OF ASH CLOUD: ASH HASN'T BEEN DETECTED IN SATELLITE IMAGERY RECENTLY. . TRAJECTORY: MOVEMENT WAS TO THE SOUTHWEST AT 15 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. . EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES AND MINUTES OF A DEGREE. EXAMPLE... 16.70N 62.20W WILL BE 1642N6212W . THIS IS THE LAST STATEMENT ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . . NNNN