FVXX20 KWBC 210414 VOLCANIC ASH ADVISORY ISSUED: 2003SEP21/0430Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/266 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: EMISSION AT 19/1004Z OBS ASH DATE/TIME: 21/0315Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/260 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: ASH IS NOT VISIBLE IN SATELLITE IMAGERY DUE TO WEATHER CLOUDS ACROSS THE REGION. THE GEOPHYSICAL INSTITUTE OBSERVED ASH AT 0149Z TO FL260. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP21/1030Z. NNNN