FVXX21 KWBC 290830 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0830 UTC 29 NOV 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-182 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 MULTISPECTRAL AND INFRARED IMAGERY...REPORT FROM THE GEOFISICO INSTITUTO...00 UTC AVIATION MODEL WIND FORECAST . ERUPTION DETAILS: CONTINUOUS STEAM EMISSIONS AND SOME ASH EMISSIONS . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 0745 UTC. HOWEVER LOW AND MID LEVEL WEATHER CLOUDS MIGHT BE HAMPERING ASH DETECTION. AT 28/2145 UTC UNDER CLEARER SKIES AN ASH PLUME AT ABOUT FL300 WAS SEEN EXTENDING FROM THE SUMMIT TOWARD THE WEST SOUTHWEST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AT ABOUT FL300 WOULD MOVE TO THE WEST SOUTHWEST AT LESS THAN 15 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 29/1430 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN