FVXX21 KWBC 191130 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1130 UTC 19 NOV 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-139 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. UPPER-AIR DATA AND REPORTS FROM THE GEOFISICO INSTITUTO. . ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS. . DETAILS OF ASH: CLOUDINESS OVER THE AREA MAKES ANY ASH DETECTION DIFFICULT. MULTISPECTRAL IMAGERY THRU 1045 UTC DOES NOT SHOW ANY ASH BEING EMITTED FROM THE VOLCANO ABOVE THE METEOROLOGICAL CLOUDS. . TRAJECTORY: ANY ASH BELOW FL250 WILL MOVE WEST AT 10 KNOTS AND BETWEEN FL250 AND FL350 WILL MOVE WEST SOUTHWEST BETWEEN 15 AND 25 KNOTS. . 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/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED BY 19/1730 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN