FVXX20 KWBC 211400 VOLCANIC ASH ADVISORY ISSUED: 2002MAR21/1400Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/163 . INFORMATION SOURCE: GOES-8 IMAGERY. SIGMET. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH CLOUD REPORTED OVER VOLCANO AT 1328Z. OBS ASH DATE/TIME: 21/1328Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH IS NOT SEEN IN THE SATELLITE IMAGERY DUE TO EXTENSIVE CLOUD COVER THROUGH 21/1400Z. AVN MODEL FORECAST INDICATES ANY ASH BELOW FL300 WOULD MOVE W AT 10 KNOTS...GALLINA/RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 2002MAR21/2000Z . NNNN