FVXX20 KWBC 111200 CCA VOLCANIC ASH ADVISORY-CORRECTION ISSUED: 2002MAR11/1150Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/139 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. . ERUPTION DETAILS: ASH TO FL270 OBSERVED AT 11/1110Z. . OBS ASH DATE/TIME: 11/1115Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL300 MOVING W AROUND 15 TO 20 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: CORRECTION FOR NEXT ADVISORY TIME. PILOT REPORT REFERENCED IN SIGMET REPORTED ASH ESTIMATED TO FL270. DUE TO CLOUDS IN THE REGION ASH IS NOT DETECTED IN SATELLITE IMAGERY THROUGH 11/1115Z. . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR11/1800Z. . NNNN