FVXX22 KWBC 190115 VOLCANIC ASH ADVISORY ISSUED 0115 UTC 19 AUG 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-150 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 19/0000 UTC UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: ROCKFALLS AND SMALL PYROCLASTIC FLOWS. . DETAILS OF ASH CLOUD: THE LAST GOES-8 VISIBLE IMAGE BEFORE DARKNESS STILL SHOWED A FAINT LOW LEVEL PLUME EMANATING FROM THE VOLCANO. THIS ASH CAN NOT BE DETECTED BY THE LOWER RESOLUTION INFRARED DATA HOWEVER A CONSISTENT HOT SPOT IS BEING DETECTED BY SHORTWAVE INFRARED AND REFLECTIVITY IMAGERY. THIS INDICATES THAT THE VOLCANO IS STILL PRODUCING LAVA AND POSSIBLY ASH. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR BELOW FL070 WILL MOVE SOUTHWEST AROUND 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 19/0730 UTC. . 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. . HUGHES . NNNN