FVXX22 KWBC 030730 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0725 UTC 03 NOVEMBER 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-251 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 IMAGERY...1200 UTC U.S. NATIONAL WEATHER SERVICE AVIATION WEATHER MODEL WIND DATA...0000 UTC GUADELOUPE RADIOSONDE . ERUPTION DETAILS: NEW ERUPTION BEGAN AT ABOUT 02/2155 UTC. . DETAILS OF ASH CLOUD: THE ASH UP TO FL200 DETECTED SIX HOURS AGO HAS NOW BECOME TOO DIFFUSE TO SEE IN SATELLITE IMAGERY. NO ASH CAN BE SEEN IN INFRARED OR MULTISPECTRAL IMAGERY THROUGH 0645 UTC. . TRAJECTORY: UPPER AIR PATTERNS INDICATE THAT ANY ASH AT ABOUT FL200 WOULD MOVE TO THE SOUTHEAST AT 15 TO 20 KNOTS. ASH AT ABOUT FL150 WOULD MOVE TO THE NORTHEAST AT 15 KNOTS. ASH BETWEEN FL050 AND FL100 WOULD MOVE TO THE NORTH AT LESS THAN 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 MESSAGE WILL BE ISSUED BY 03/1330 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN