FVXX20 KWBC 091121 VOLCANIC ASH ADVISORY ISSUED: 2003DEC09/1030Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/586 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS. GUAYAQUIL MWO SIGMETS. ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 09/0945Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING TO NW 15 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: THE LATEST OBSERVATION OF ASH BY THE INSTITUTE WAS AT 09/0153Z TO FL250. CLOUDS OVER THE VOLCANO MAKE IT DIFFICULT TO DETECT ASH FROM SATELLITE IMAGERY. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC09/1630Z NNNN