FVXX21 KWBC 011930 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1930 UTC 01 DEC 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-192 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..MULTISPECTRAL AND INFRARED IMAGERY. AVIATION MODEL WIND FORECAST. REPORT FROM THE GEOFISICO INSTITUTO. . ERUPTION DETAILS: CONTINUOUS STEAM AND ASH EMISSIONS AND OCCASIONAL EXPLOSIONS OF ASH. . DETAILS OF ASH: NO ASH IS CURRENTLY BEING DETECTED ON THE SATELLITE IMAGERY THROUGH 01/1815 UTC. THE ASH SEEN EARLIER AND MENTIONED IN MESSAGE 99-191 HAS NOW DISSIPATED. . TRAJECTORY: ANY REMAINING ASH AT FL320 WOULD CONTINUE TO MOVE TOWARD THE NORTH AT 10 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 02/0130 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . WALTER/SAB/NOAA/NESDIS . NNNN