FVXX20 KWBC 312228 VOLCANIC ASH ADVISORY ISSUED: 2004MAY31/2227Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/233 INFORMATION SOURCE: GUAYAQUIL MWO. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: CONTINUOUS EMISSIONS OF GASES AND LIGHT ASH OBS ASH DATE/TIME: 31/2215Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL230 MOVING TO W 15-20 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: NO ASH HAS BEEN SEEN ALTHOUGH THERE ARE EXTENSIVE CLOUDS IN THE VICINITY OF THE SUMMIT ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUN01/0430Z NNNN