FVXX20 KWBC 130753 VOLCANIC ASH ADVISORY ISSUED: 2003DEC13/0800Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/603 INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET. GFS MODEL WINDS FORECAST ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 13/0715Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/220 MOVING TO W 15-20 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: SATELLITE IMAGERY THROUGH 13/0715Z SHOWS EXTENSIVE CLOUDS BLANKETING THE REGION AROUND THE VOLCANO MAKING DETECTION OF ASH DIFFICULT AT THIS TIME....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003DEC13/1400Z. WALTER NNNN