FVXX21 KWBC 261220 VOLCANIC ASH ADVISORY ISSUED 1220 UTC 26 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-746 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 26/0600 UTC AVIATION MODEL. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH COULD BE DISCERNED IN SATELLITE IMAGERY THROUGH 26/1145 UTC. THERES BEEN NO INDEPENDENT CONFIRMATION OF ASH FOR APPROXIMATELY 24 HOURS. . TRAJECTORY: ANY ASH THAT MIGHT EXIST TO FL250 WOULD MOVE TOWARDS THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 26/1830 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