FVXX20 KWBC 160720 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0720 UTC 16 MAR 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-044 WEST INDIES 16.72N 62.18W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915 M) . SOURCES OF INFORMATION: GOES 8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY . ERUPTION DETAILS: EMISSION AT APPROX 16/0040 UTC. . DETAILS OF ASH CLOUD: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 16/0700 UTC. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT ABOUT FL100 WOULD MOVE TOWARD THE WEST AT LESS THAN 20 KNOTS. . 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. . THIS WILL BE THE FINAL MESSAGE ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN