FVXX20 KWBC 240142 VOLCANIC ASH ADVISORY ISSUED: 2003SEP24/0200Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/278 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: EMISSION AT 21/2345Z OBS ASH DATE/TIME: 24/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED IN MULTI SPECTRAL IMAGERY. THE LAST OBSERVATION OF ASH BY THE INSTITUTE WAS AT 24/0003Z ...KARST NEXT ADVISORY: WILL BE ISSUED BY 2003SEP24/0800Z. NNNN