FVXX22 KWBC 161100 VOLCANIC ASH ADVISORY ISSUED 1100 UTC 16 AUG 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-139 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. AVIATION MODEL WIND FORECAST. . ERUPTION DETAILS: ROCKFALLS AND SMALL PYROCLASTIC FLOWS. . DETAILS OF ASH CLOUD: IN THE FIRST FEW FAINTLY LIT VISIBLE IMAGES OF THE DAY A POSSIBLE SUSPICIOUS AREA IS SEEN THAT MIGHT BE AN ASH PLUME EXTENDING FROM THE SUMMIT TOWARD THE WEST. WHEN MORE VISIBLE IMAGERY BECOMES AVAILABLE IT SHOULD BE POSSIBLE TO DETERMINE WHETHER THIS IS TRULY AN ASH PLUME AND A NEW ADVISORY WILL BE ISSUED. . TRAJECTORY: IF THERE IS ANY REMAINING ASH AT ABOUT FL070 IT WOULD MOVE TOWARD THE WEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED AS SOON AS NEW INFORMATION IS AVAILABLE. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN