FVXX21 KWBC 071955 VOLCANIC ASH ADVISORY ISSUED 1955 UTC 07 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-923 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. . ERUPTION DETAILS: NEARLY CONTINUOUS GASES AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH COULD BE DETECTED IN SATELLITE IMAGERY THROUGH 07/1915 UTC DUE TO CLOUD COVER. ASH WAS LAST REPORTED AT 06/1344 UTC TO FL170. . TRAJECTORY: ANY ASH NEAR SUMMIT LEVEL WOULD MOVE TOWARD THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 08/0200 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. . BROWN . NNNN