FVXX20 KWBC 201856 VOLCANIC ASH ADVISORY ISSUED: 2004JAN20/1900Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/070 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 20/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL165/210 MOVING TO NE 5 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: A HOTSPOT CAN NO LONGER BE SEEN ON RECENT MULTISPECTRAL IMAGERY. EARLY MORNING VISIBLE IMAGERY HAD SHOWN A THIN PLUME NE FROM THE SUMMIT. ASH EMISSIONS CAN NOT BE SEEN ON CURRENT SATELLITE IMAGERY. HOWEVER, 1810Z SIGMET STATES ASH CLOUD AT FL165/210 MOVING ENE. BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 2004JAN21/0100Z. NNNN