FVXX21 KWBC 250720 VOLCANIC ASH ADVISORY ISSUED 0720 UTC 25 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-868 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED...AND MULTISPECTRAL IMAGERY. UPPER-LEVEL WIND FORECAST DATA. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 25/0650 UTC DOES NOT INDICATE ANY AREAS OF ASH OR STEAM. CLOUDINESS IN THE REGION MAY BE OBSCURING ANY ASH PRESENT. . TRAJECTORY: ANY ASH AT OR NEAR SUMMIT LEVEL SHOULD MOVE SOUTHWEST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 25/1330 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. . NNNN