FVXX21 KWBC 271621 VOLCANIC ASH ADVISORY ISSUED: 2004FEB27/1620Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/136 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 27/1545Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/180 MOVING TO SW 10 TO 20 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: CLOUDS COVER THE AREA OBSCURING DETECTION OF ANY ASH. NEXT ADVISORY: WILL BE ISSUED BY 2004FEB27/2200Z. NNNN