FVXX22 KWBC 040730 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0730 UTC 04 AUG 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-198 WEST INDIES 16.7N 62.2W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: MONTSERRAT VOLCANO OBSERVATORY. GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. 04/00 UTC SOUNDING FROM GUADELOUPE . ERUPTION DETAILS: APPROXIMATELY 03/2345 UTC TO FL150. . DETAILS OF ASH CLOUD: ASH HAS NOT BEEN VISIBLE IN SATELLITE IMAGERY FOR THE SEVERAL HOURS. . TRAJECTORY: AT THE TIME OF THE ERUPTION ASH WAS MOVING TOWARD THE NORTHWEST AT 12 TO 18 KNOTS. THE 04/00 UTC SOUNDING FROM GUADELOUPE WOULD INDICATE A WESTERLY DIRECTION AT 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 www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS. . THIS IS THE LAST MESSAGE ON THIS EVENT. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN