FVXX20 KWBC 031757 VOLCANIC ASH ADVISORY ISSUED: 2003SEP03/1800Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/205 INFORMATION SOURCE: GOES-12 IMAGERY. ERUPTION DETAILS: ONGOING ERUPTION SINCE 20/1745Z. OBS ASH DATE/TIME: 03/1715Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. REMARKS: SATELLITE IMAGERY THROUGH 03/1715Z SHOWS CLOUDS OVER THE REGION MAKING DETECTION OF ASH DIFFICULT AT THIS TIME....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003SEP04/0000Z. NNNN