FVXX20 KWBC 160633 VOLCANIC ASH ADVISORY ISSUED: 2003SEP16/0645Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/250 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: CONTINUING EMISSIONS OBS ASH DATE/TIME: 16/0615Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING W 5-10 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 16/0615Z..HOWEVER AND OCCASIONAL HOTSPOT WAS OBSERVED IN THE MULTISPECTRAL IMAGERY. THE LAST OBSERVATION OF ASH OCCURRED AT 16/0124Z....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003SEP16/1245Z. NNNN