FVXX21 KWBC 040135 VOLCANIC ASH ADVISORY ISSUED 0135 UTC 04 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-779 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: NO ASH COULD BE DISCERNED IN SATELLITE IMAGERY THROUGH 0045 UTC WITH BROKEN CLOUDS IN THE VICINITY OF THE VOLCANO. . TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND FL250 IS FORECAST TO MOVE TOWARDS THE SOUTHWEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 04/0730 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORIES 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN