FVXX21 KWBC 290100 VOLCANIC ASH ADVISORY ISSUED 0100 UTC 29 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-883 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. SIX HOUR WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: NO ASH PLUME IS CURRENTLY VISIBLE ON SATELLITE IMAGERY THROUGH 29/0015 UTC. AN EXTENSIVE AREA OF CLOUDS SURROUND THE VOLCANO MAKING ASH DETECTION DIFFICULT. . TRAJECTORY: ANY ASH THAT MAY EXIST NEAR THE SUMMIT LEVEL WOULD MOVE TOWARDS THE WEST-SOUTHWEST AT 15-20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 29/0700 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