FVXX20 KWBC 200059 VOLCANIC ASH ADVISORY ISSUED: 2004JAN20/0100Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/067 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 20/0015Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING TO E 10-15 KNOTS FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: A VERY THIN ASH PLUME WAS OBSERVED BRIEFLY IN VISIBLE IMAGERY BEFORE SUNSET AND IS NO LONGER VISIBLE IN MULTI-SPECTRAL SATELLITE IMAGERY. ANY REMAINING ASH SHOULD MOVE TO THE E BASED ON UPPER AIR MODEL WINDS. NEXT ADVISORY: WILL BE ISSUED BY 2004JAN20/0700Z. NNNN