FVXX21 KWBC 230145 VOLCANIC ASH ADVISORY ISSUED 0145 UTC 23 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-859 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM... . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH OVER THE VOLCANO AT 22/1933 UTC. ASH WAS THEN ESTIMATED TO BE REACHING FL290. SATELLITE IMAGERY THROUGH 23/0115 UTC DOES NOT INDICATE ANY ASH. . TRAJECTORY: UPPER-LEVEL WIND INFORMATION SUGGESTS THAT ASH FROM THE SUMMIT TO FL290 SHOULD MOVE TO WEST AND NORTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 23/0800 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. . ORRISON . NNNN