FVXX20 KNES 251748 VOLCANIC ASH ADVISORY ISSUED: 20070825/1746Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/529 INFORMATION SOURCE: GOES-12. GFS WINDS. PILOT REPORT. ERUPTION DETAILS: ONGOING EMISSIONS OBS ASH DATE/TIME: 25/1715Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL250 MOVING TO W 15-25 KNOTS. FCST ASH CLOUD +6H: 25/2330Z FCST ASH CLOUD +12H: 26/0530Z FCST ASH CLOUD +18H: 26/1130Z REMARKS: ASH CANNOT BE DETECTED IN GOES-12 VISIBLE SATELLITE IMAGERY DUE TO CLOUD COVER. AT 25/1048Z A PILOT REPORTED ASH AT FL190. ...BROWN NEXT ADVISORY: WILL BE ISSUED BY 20070825/2345Z