FVXX21 KWBC 150850 VOLCANIC ASH ADVISORY ISSUED: 2003MAR15/0850Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/034 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: EMISSION OF GASES AND LIGHT ASH AT 14/1634Z OBS ASH DATE/TIME: 15/0815Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL250 LIGHT AND VARIABLE. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH WAS NOT DETECTED IN SATELLITE IMAGERY THROUGH 0815Z. BROKEN CLOUDS MAY BE OBSCURING ASH IN THE AREA AROUND THE SUMMIT. NEXT ADVISORY: WILL BE ISSUED BY 2003MAR15/1500Z. NNNN