FVXX21 KWBC 120730 VOLCANIC ASH ADVISORY ISSUED 0730 UTC 12 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-813 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. JULY 11 GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: GASES WITH OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 12/0645 UTC POSSIBLY BECAUSE OF THE LOW LEVEL WEATHER CLOUDS COVERING THE AREA. THE JULY 11 REPORT FROM THE GEOPHYSICAL INSTITUTE INDICATES NO VOLCANIC EXPLOSIONS AND LITTLE ACTIVITY. . TRAJECTORY: IF THERE IS ANY ASH NEAR OR SLIGHTLY ABOVE THE SUMMIT IT WILL MOVE TOWARD THE WEST AT ABOUT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 12/1330 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