FVXX20 KWBC 201617 VOLCANIC ASH ADVISORY ISSUED: 2003DEC20/1630Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/626 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 20/1545Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING TO W 10-15 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 20/1545Z. LITTLE HAS CHANGED IN THE PAST SIX HOURS...OCCASIONAL HOTSPOTS HAVE BEEN SEEN ON GOES-12 IMAGERY INDICAING THAT ACTIVITY MAY BE CONTINUING. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC20/2230Z. NNNN