FVXX21 KWBC 101630 VOLCANIC ASH ADVISORY ISSUED 1630 UTC 10 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-680 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 10/1545 UTC. HOWEVER CLOUDS IN THE AREA ARE HINDERING THE DETECTION OF ANY ASH. THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE VOLCANO AT 10/1358 UTC MOVING TO THE SOUTHWEST. THIS ASH WAS ESTIMATED UP TO FL230. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH BETWEEN THE SUMMIT AND FL230 WOULD MOVE TOWARD THE WEST SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 10/2230 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