FVXX20 KWBC 161530 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1530 UTC 16 MAR 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-045 WEST INDIES 16.72N 62.18W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915 M) . SOURCES OF INFORMATION: GOES 8 VISIBLE AND INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. MONTSERRAT VOLCANO OBSERVATORY . ERUPTION DETAILS: VOLCANO HAD ERUPTED AT 16/1510 UTC. . DETAILS OF ASH CLOUD: VOLCANO HAD ERUPTED TO AT LEAST FL100 WITH ASH MOVING WESTWARD. THE LATEST SATELLITE IMAGERY THROUGH 16/1515 UTC DOES NOT INDICATE ANY ASH AT THIS TIME. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT ABOUT FL100 WOULD MOVE TOWARD THE WEST AT 10 TO 15 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 BULLETIN WILL BE ISSUED AT 16/2130 UTC OR EARLIER IF ASH BECOMES DETECTED IN IMAGERY. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN