FVXX20 KWBC 290040 VOLCANIC ASH ADVISORY ISSUED: 2003DEC29/0100Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/662 INFORMATION SOURCE: GOES-12 IMAGERY. ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS OBS ASH DATE/TIME: 29/0015Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING TO NE 5-10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: THE ASH PLUME OBSERVED EARLIER IS NO LONGER DETECTED IN SATELLITE IMAGERY. BASED ON UPPER AIR FORECASTS ANY ASH TO FL250 SHOULD MOVE TOWARDS THE NE AT 5 TO 10 KNOTS. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC29/0700Z. NNNN