FVXX21 KWBC 070531 VOLCANIC ASH ADVISORY ISSUED: 2004FEB07/0530Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/114 INFORMATION SOURCE: GOES 12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: EMISSION AT 07/0433Z OBS ASH DATE/TIME: 07/0445Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/230 MOVING W 15-20 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: A NEW GUAYAQUIL MWO SIGMET REPORTS THAT THE GEOPHYSICAL INSTITUTE OBSERVED ASH OVER THE SUMMIT AT 07/0433Z. THE ASH WAS REPORTED TO BE BETWEEN FL165 AND FL230. MOSTLY CLOUDY SKIES AROUND THE SUMMIT ARE MAKING IT DIFFICULT TO DETECT ASH IN THE CURRENT SATELLITE IMAGERY THROUGH 07/0445Z....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2004FEB07/1130Z NNNN