FVXX20 KWBC 130150 VOLCANIC ASH ADVISORY ISSUED: 2003DEC13/0200Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/602 INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 13/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/220 MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: IT IS DIFFICULT TO DETECT ASH OVER THE VOLCANO DUE TO EXTENSIVE CLOUDS IN THE REGION. THE LATEST OBSERVATION OF ASH BY THE GEOPHYSICAL INSTITUTE WAS AT 1305Z TO FL200. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC13/0800Z. NNNN