FVXX20 KWBC 220230 VOLCANIC ASH ADVISORY ISSUED: 2002OCT22/0230Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/500 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH OBSERVED AT 22/0256Z. . OBS ASH DATE/TIME: 22/0156Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL165/FL265 MOV SW 15-25 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: SIGMET INDICATES THAT ASH TO FL265 WAS OBSERVED BY THE GEOPHYSICAL INSTITUTE AT 0156Z. ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 22/0215Z PROBABLY DUE TO LOW AND MID LEVEL WEATHER CLOUDS. . NEXT ADVISORY: WILL BE ISSUED BY 2002OCT22/0830Z. . NNNN