FVXX20 KWBC 121600 VOLCANIC ASH ADVISORY ISSUED: 2002AUG12/1600Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/392 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL FORECAST WINDS. SIGMET FROM GUAYAQUIL. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: NEAR SUMMIT ASH EMISSION. . OBS ASH DATE/TIME: 12/1545Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS FL100/FL200 MOVING W 10-15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY DUE TO LOW AND MID LEVEL CLOUDS OBSCURING THE VIEW OF THE VOLCANO. THE GEOPHYSICAL INSTITUTE REPORTS ASH OVER SUMMIT TO FL165. GS/BH . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN