FVXX20 KWBC 311645 VOLCANIC ASH ADVISORY ISSUED: 2004MAY31/1644Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/232 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: NEARLY CONTINUES EMISSION OF GASSES AND LIGHT ASH. OBS ASH DATE/TIME: 31/1615Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS 100/230 MOVING TO W 10-15 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: DUE TO MULTIPLY LAYERS OF CLOUDS NO ASH CAN BE DETECTED IN IMAGERY. THE GEOPHYSICAL INSTITUE REPORTS CONTINUED NEAR SUMMIT ACTIVITY WITH THE PLUME DRIFTING WEST. ... NEXT ADVISORY: WILL BE ISSUED BY 2004MAY31/2230Z NNNN