FVXX21 KWBC 210735 VOLCANIC ASH ADVISORY ISSUED 0735 UTC 21 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-723 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM AVIATION MODEL. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 0645 UTC DID NOT SHOW ANY ASH HOWEVER CLOUDS COVERED THE SUMMIT AND SURROUNDING VICINITY. . TRAJECTORY: ANY ASH THAT MAY EXIST BETWEEN THE SUMMIT AND FL220 WOULD MOVE TOWARDS THE WEST OR WEST SOUTHWEST BETWEEN 15 AND 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 21/1330 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