FVXX20 KWBC 281715 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1700 UTC 28 JULY 1999 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 99-191 WEST INDIES 16.7N 62.2W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: 28/1645 UTC VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. 28/1200 UTC GUADELOUPE UPPER SOUNDING AND MVO. ERUPTION DETAILS: NEW ERUPTION OCCURRING AROUND 28/1635 UTC. LAST NIGHT'S ERUPTION OCCURRED AT ABOUT 28/0220 UTC. . DETAILS OF ASH CLOUD: MVO REPORTS A NEW ERUPTION OCCURRING AROUND 28/1635 UTC WITH ESTIMATED HEIGHT OF THE ASH TO APPROXIMATELY FL1200. THE LATEST VISIBLE SATELLITE IMAGERY AT 1645 UTC SHOWS A VERY SMALL PLUME NEAR THE SUMMIT. AT THIS TIME WE ARE UNABLE TO DETERMINE A DIRECTION OF MOVEMENT. . ASH FROM LAST NIGHT'S ERUPTION IS NO LONGER VISIBLE ON THE SATELLITE IMAGERY. IT WAS LAST SEEN ON THE SATELLITE IMAGERY AT 28/1615 UTC NEAR 14.8N 66.0W..MOVING TOWARD THE WEST AT 15-20 KTS. . TRAJECTORY: THIS MORNING'S UPPER AIR WIND ANALYSIS WOULD SUGGEST ANY NEW ASH AT OR NEAR FL100 WOULD MOVE TOWARD SOUTHWEST AROUND 20 KTS. . 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 LATEST SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED ONCE ASH MOVEMENT CAN BE DETERMINED AND A GRAPHICAL PRODUCT CAN BE PRODUCED. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN