FVXX20 KWBC 212225 VOLCANIC ASH ADVISORY ISSUED: 2004JUL21/2225Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/399 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: ASH LAST OBSERVED AT 21/2059Z OBS ASH DATE/TIME: 21/2145Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL230 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: ASH CAN NOT BE SEEN IN THE CURRENT SATELLITE IMAGERY THROUGH 21/2145Z. THE GEOPHYSICAL INSTITUTE LAST OBSERVED ASH AT 21/2059Z TO FL230 MOVING WEST. WALTER ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUL22/0430Z NNNN