FVXX20 KWBC 250135 VOLCANIC ASH ADVISORY ISSUED: 2003SEP25/0200Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/282 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: EMISSION AT 21/2345Z OBS ASH DATE/TIME: 25/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/230 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED IN MULTI SPECTRAL IMAGERY THROUGH 25/0115Z. ASH HAS BEEN OBSERVED BY THE INSTITUTE AT 24/2339Z TO FL230...KARST NEXT ADVISORY: WILL BE ISSUED BY 2003SEP25/0800Z. NNNN