FVXX20 KWBC 280459 VOLCANIC ASH ADVISORY ISSUED: 2003DEC28/0500Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/658 INFORMATION SOURCE: GOES-12 IMAGERY. MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS OBS ASH DATE/TIME: 28/0415Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING TO N 5-10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 0415Z BUT AN OCCASIONAL HOTSPOT WAS DETECTED IN MULTI- SPECTRAL IMAGERY. TURK NEXT ADVISORY: WILL BE ISSUED BY 2003DEC28/1100Z. NNNN