FVXX21 KWBC 161745 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1630 UTC 16 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-063 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. UPPER AIR DATA AND REPORTS FROM THE GEOPHYSICAL INSTITUTE... . ERUPTION DETAILS: POSSIBLE EMISSIONS OF ASH AND STEAM . DETAILS OF ASH: THE LATEST SATELLITE IMAGERY THROUGH 16/1545 UTC DOES NOT SHOW ANY ASH PLUMES ALTHOUGH EXTENSIVE METEOROLOGICAL CLOUDS ARE PRESENT. ASH WAS LAST SEEN ON SATELLITE IMAGERY LATE YESTERDAY AFTERNOON AND ESTIMATED AT FL250. TRAJECTORY: IF ASH AT FL250 IS PRESENT, IT IS FORECASTED TO MOVE WEST-NORTHWEST AT ABOUT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 16/2230 UTC. . 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 http://www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN