FVXX22 KWBC 151500 VOLCANIC ASH ADVISORY ISSUED 1500 UTC 15 OCT 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1143 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE IN QUITO. UPPER WINDS FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: ERUPTION AT 14/2324 UTC AND POSSIBLE 2ND EMISSION AROUND 15/0630 UTC. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 15/1415 UTC SHOWS LOW AND MID LEVEL CLOUDS OVER THE REGION MAKING IT DIFFICULT TO DETECT ANY ASH AT THIS TIME. ASH FROM THE EARLIER ERUPTIONS WERE ESTIMATED UP TO FL400 AND MOVED NORTH. THE VOLCANO REMAINS UNSTABLE AND MAY HAVE ADDITONAL EMISSIONS AT ANY TIME. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL40O WILL MOVE TOWARDS THE NORTH AT ABOUT 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 15/2100 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. . KARST . NNNN