FVXX20 KWBC 130128 VOLCANIC ASH ADVISORY ISSUED: 2003SEP13/0130Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/237 INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: EMISSION AT 11/0055Z OBS ASH DATE/TIME: 13/0045Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING W TO SW 10 to 15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: THE LAST OBSERVATION OF ASH FROM THE INSTITUTE WAS AT 12/1820Z. AN AIRCRAFT OBSERVED ASH OVER THE VOLCANO AT 12/2140Z. SATELLITE IMAGERY DOES NOT INDICATE ANY ASH DUE TO CLOUDS IN THE AREA. MODEL WIND FORECASTS INDICATE THAT ANY ASH SHOULD MOVE TOWARDS THE W OR SW AT 10 TO 15 KNOTS. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP14/0730Z. NNNN