FVXX20 KWBC 251729 VOLCANIC ASH ADVISORY ISSUED: 2004JUL25/1728Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/415 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS OBS ASH DATE/TIME: 25/1645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 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: IT REMAINS MOSTLY CLOUDY OVER THE AREA AND THERE HAVE BEEN NO SURFACE REPORTS FROM THE VOLCANO. DUE TO CLOUDCOVER NO ASH CAN BE DETECTED FROM SATELLITE IMAGERY. DUE TO A SLIGHT DECREASE IN SEISMIC ACTIVITY THE ESTIMATED HEIGHT HAS BEEN LOWERED SLIGHTLY. ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUL25/2330Z NNNN