FVXX20 KWBC 031435 VOLCANIC ASH ADVISORY ISSUED: 2002JUL03/1430Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/309 . INFORMATION SOURCE: GUAYAQUIL MWO AIRCRAFT REPORT GOES8 IMAGERY AVN WINDS FORECAST. . ERUPTION DETAILS: EMISSION PRIOR TO 03/1400Z TO FL180 MOVING SSW. . OBS ASH DATE/TIME: 03/1402Z OBS ASH CLOUD: ASH NOT OBSERVED FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: GUAYAQUIL MWO INDICATES THAT LOCAL AIRCRAFT REPORT ASH TO FL180 MOVING SSW. ASH CANNOT BE SEEN ON SATELLITE IMAGERY THROUGH 03/1415Z ALTHOUGH THERE ARE EXTENSIVE CLOUDS PRESENT. . NEXT ADVISORY: WILL BE ISSUED BY 2002JUL03/2030Z. . NNNN