FVXX20 KWBC 171831 VOLCANIC ASH ADVISORY ISSUED: 2003SEP17/1900Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/256 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE ERUPTION DETAILS: CONTINUING EMISSIONS OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: THE GEOPHYSICAL INSTITUTE REPORTS THAT SEISMIC ACTIVITY HAS BEEN LOW FOR THE PAST 24 HOURS. ASH CANNOT BEEN SEEN IN SATELLITE IMAGERY THROUGH 17/1815Z. WE WILL CONTINUE TO MONITOR THE VOLCANO FOR FURTHER ACTIVITY AND ADVISE AS NEEDED. NEXT ADVISORY: NO FURTHER ADVISORIES NNNN