FVXX20 KWBC 301248 VOLCANIC ASH ADVISORY ISSUED: 2003SEP30/1300Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/304 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: SERIES OF EMISSIONS STARTING AT 21/2345Z OBS ASH DATE/TIME: 30/1215Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/190 MOVING W 5-10 KNOTS. WINDS FL190/270 MOVING N LESS THAN 5 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED IN MULTI SPECTRAL IMAGERY DUE TO CLOUDS OVER THE VOLCANO. GUAYAQUIL REPORTS AN AIRCRAFT OBSERVATIONS OF ASH AT 1210Z AT FL250 MOVING WEST AND AT 1225Z OVER THE VOLCANO BETWEEN FL180 AND FL260. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP30/1900Z. NNNN