FVXX20 KWBC 080245 . VOLCANIC ASH ADVISORY STATEMENT...CORRECTION ISSUED 0245 UTC 08 APR 1999 BY THE WASHINGTON VAAC . CORRECTION FOR MESSAGE NUMBER . SOUFRIERE HILLS 99-095 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. MONTSERRAT VOLCANO OBSERVATORY. 0000 UTC GUADELOUPE UPPER AIR SOUNDING. PILOT REPORT . ERUPTION DETAILS: ERUPTION AT 08/0204 UTC. . DETAILS OF ASH CLOUD: THE MONTSERRAT VOLCANO OBSERVATORY REPORTED AN ASH VENTING AT APPROXIMATELY 0204 UTC WITH ASH UP TO FL100 AND MOVING TO THE NORTHWEST. A PILOT REPORT FROM NEAR ANTIGUA ECHOED THE REPORT FROM THE OBSERVATORY. SATELLITE IMAGERY THROUGH 0202 UTC SHOWS NO INDICATION OF ANY ASH PLUME. SCATTERED MIDDLE AND HIGH LEVEL METEOROLOGICAL CLOUDS ARE OBSCURING THE ISLAND AND MAY MAKE ASH DETECTION DIFFICULT. . TRAJECTORY: UPPER AIR SOUNDINGS INDICATE THAT ASH AT FL050 WOULD MOVE NORTHWEST AT ABOUT 15 KTS. FL100 WINDS ARE MORE WESTERLY AT ABOUT 8KTS. WINDS AT FL190 SHIFT TO THE EAST SOUTHEAST AT ABOUT 20 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: N/A. . THE NEXT MESSAGE WILL BE ISSUED AROUND 08/0900 UTC UNLESS ADDITIONAL INFORMATION IS RECEIVED. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN