FVXX20 KWBC 070015 VOLCANIC ASH ADVISORY ISSUED: 2002MAR06/0015Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/121 . INFORMATION SOURCE: GOES-8 IMAGERY. GEOPHYSICAL OBSERVATORY REPORT. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH OBSERVED AT 05/2241Z. . OBS ASH DATE/TIME: 05/2241Z . OBS ASH CLOUD: SFC/FL230 MOVING W 10 KNOTS. ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL OBSERVATORY REPORTED OBSERVING ASH AT 2241Z. ASH CAN NOT BE SEEN IN SATELLITE IMAGERY THROUGH 2345Z DUE TO OVERCAST CONDITIONS. . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR06/0630Z. . NNNN