FVXX21 KWBC 260130 VOLCANIC ASH ADVISORY ISSUED 0100 UTC 26 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-871 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 ..INFRARED...AND MULTISPECTRAL IMAGERY. 26/0000 UTC FORECAST UPPER WINDS FROM THE 25/1500Z AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 0045 UTC SHOWS EXTENSIVE CLOUDS OBSCURING ANY ASH. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH TO FL300 AT 25/1200 UTC ALTHOUGH CURRENT EMISSIONS ARE PROBABLY CLOSER TO FL200. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL300 TO MOVE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/0700 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. . . NNNN