FVXX20 KWBC 230145 VOLCANIC ASH ADVISORY ISSUED: 2002MAR23/0145Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/169 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: ASH CLOUD OBSERVED AT 22/2250Z. . OBS ASH DATE/TIME: 23/0115Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL165/FL200 MOVING N 10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE SUMMIT HAS BECOME OBSCURED BY HIGH CLOUDS PRECLUDING THE DETECTION OF ASH THROUGH 0115Z....TURK/GALLINA . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR23/0800Z . NNNN