FVXX20 KWBC 192000 VOLCANIC ASH ADVISORY ISSUED: 2002JUL19/2000Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/334 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET . ERUPTION DETAILS: ASH OBSERVED AT 19/1940Z. . OBS ASH DATE/TIME: 19/1945Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL180 MOVING W 1-10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED WESTWARD MOVING ASH AT 1940Z AND THEY ESTIMATED THE ASH TO BE AT FL165. HOWEVER DUE TO CLOUD COVER NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 1945Z. WINDS FROM FL140 TO FL180 ARE LIGHT AND VARIABLE AND THE DIRECTION AND SPEED ARE DIFFICULT TO DETERMINE. . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN