FVXX21 KWBC 220800 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0800 UTC 22 NOV 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-151 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. THE GEOFISICO INSTITUTO...22/0000 UTC AVIATION MODEL UPPER AIR WIND DATA. . ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS AS REPORTED BY THE GEOFISICO INSTITUTO AND SEEN IN SATELLITE IMAGERY. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 22/0615 UTC SHOWS EXTENSIVE LAYERED CLOUDS OVER THE AREA MAKING DETECTION OF ASH IMPOSSIBLE. . TRAJECTORY: ANY ASH AT FL240 WOULD MOVE TOWARD THE SOUTHEAST AT 10KT. . 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 22/1400 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . WALTER/SAB/NOAA/NESDIS . NNNN