FVXX20 KWBC 150400 VOLCANIC ASH ADVISORY ISSUED: 2002AUG15/0400Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/396 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL FORECAST WINDS. SIGMET FROM GUAYAQUIL. GEOPHYSICAL INSTITUTE. AIRCRAFT REPORT ERUPTION DETAILS: ASH EMISSION TO FL200. . OBS ASH DATE/TIME: 14/2140Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS FL100/FL200 MOVING SW 20 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY THROUGH 15/0345Z DUE TO EXTENSIVE CLOUDS IN THE REGION.....WALTER . NEXT ADVISORY: NEXT ADVISORY BY 2002AUG15/1000Z. . NNNN