FVXX21 KWBC 070600 VOLCANIC ASH ADVISORY ISSUED 0600 UTC 07 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-666 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR UPPER LEVEL WIND FORECAST FROM THE 07/0000 UTC AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 07/0515 UTC SHOWS CLOUDS IN THE AREA OF THE VOLCANO IMPEDING ANY ASH DETECTION. ASH WAS LAST VISIBLE IN SATELLITE IMAGERY AT 06/2145 UTC TO THE WEST-NORTHWEST AWAY FROM THE SUMMIT. AT THAT TIME THE ASH WAS ESTIMATED TO BE BETWEEN SUMMIT LEVEL AND FL250. . TRAJECTORY: ASH BETWEEN THE SUMMIT AND FL250 WILL MOVE TOWARDS THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 07/1200 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. . CLARK . NNNN