FVXX21 KWBC 112030 VOLCANIC ASH ADVISORY ISSUED: 2003MAR11/2030Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/020 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: CONTINUING EMISSION OF GASES AND LIGHT ASH. OBS ASH DATE/TIME: 11/1915Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL250 MOVING W 15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH HAS NOT BEEN SEEN IN THE CURRENT SATELLITE IMAGERY THROUGH 11/1915Z. HOWEVER THE GEOPHYSICAL INSTITUTE CONTINUES TO OBSERVE ASH OVER THE SUMMIT WITH NO HEIGHT GIVEN. THEIR LAST OBSERVATION OF ASH WAS AT 11/1843Z....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003MAR12/0230Z. NNNN