FVXX20 KWBC 240149 VOLCANIC ASH ADVISORY ISSUED: 2003AUG24/0150Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/160 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH ERUPTION STARTED AT 20/1745Z. OBS ASH DATE/TIME: 24/0115Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/180 MOVING SW 10-15 KNOTS. FL190/240 MOVING SW 12 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. REMARKS: AT 23/2345Z THE GEOPHYSICAL INSTITUTE REPORTED ASH CLOUD FL165/260. ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 24/0115Z DUE TO EXTENSIVE WEATHER CLOUDS. BROWN NEXT ADVISORY: WILL BE ISSUED BY 2003AUG24/0800Z. NNNN