FVXX20 KWBC 211717 VOLCANIC ASH ADVISORY ISSUED: 2004JUN21/1716Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/296 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: EMISSIONS OF ASH AND GASES OBS ASH DATE/TIME: 21/1645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL210 MOVING TO W 5-10 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: GEOPHYSICAL INSTITUTE REPORTS EMISSIONS STARTED AT 21/1609Z MOVING WEST ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUN21/2315Z NNNN