FVXX20 KWBC 242225 VOLCANIC ASH ADVISORY ISSUED: 2002MAR24/2225Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/177 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: NEARLY CONTINUOUS EMISSION OF GASES AND LIGHT ASH SINCE 20/2200Z. . OBS ASH DATE/TIME: 24/2145Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL270 MOVING SW 10-15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE REPORTED ASH TO FL270 OVER THE VOLCANO AT 1626Z. EXTENSIVE CLOUDINESS HAS PRECLUDED THE DETECTION OF ASH IN SATELLITE IMAGERY THROUGH 2145Z....TURK . NEXT ADVISORY: WILL BE ISSUED BY 2002MAR25/0430Z. . NNNN