FVXX21 KWBC 020130 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0130 UTC 02 DEC 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-193 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. 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 02/0045 UTC. THERE ARE SCATTERED CLOUDS IN THE AREA WHICH MAY BE OBSCURING ASH. . TRAJECTORY: ANY ASH AT FL200 WOULD MOVE SOUTHWEST AT ABOUT 5 KNOTS. ASH AT FL250 WOULD MOVE NORTHEAST AT ABOUT 12 KNOTS. ASH AT FL300 WOULD MOVE NORTH NORTHWEST AT ABOUT 6 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 02/0730 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN