FVXX20 KWBC 161854 VOLCANIC ASH ADVISORY ISSUED: 2003SEP16/1845Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/252 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: CONTINUING EMISSIONS OBS ASH DATE/TIME: 16/1815Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/240 MOVING W 5-10 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED DUE TO CLOUDS IN THE AREA. ASH WAS OBSERVED EARLIER MOVING WEST FROM THE SUMMIT. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP17/0100Z. NNNN