USGS Water-Year Summary 2021
07324400 WASHITA RIVER NEAR FOSS, OK
LOCATION - Lat 35°32'20", long 99°10'10" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.01, T.12 N., R.19 W., Custer County, OK, Hydrologic Unit 11130302, on right bank at downstream side county road bridge, 0.4 mi downstream from Oak Creek, 0.9 mi downstream from Foss Dam, 2.5 mi west of Stafford, 6.0 mi north of Foss, and at mile 473.5.
DRAINAGE AREA - 1,526 mi² of which 12 mi² probably is noncontributing. from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.
- WDR 2012: Drainage area.
PERIOD OF RECORD - March 1956 to April 1957, February to December 1958, July 1961 to September 1987, October 1989 to current year.
GAGE - Water-stage recorder. Elevation of gage is 1,560 ft above NGVD of 1929, from topographic map.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in May 1959 reached a stage of 23.4 ft, from floodmark.
EXTREMES FOR PERIOD OF RECORD - Minimum daily discharge for period of record, no flow at times in 1956. Maximum discharge for period of record 14,000 ft³/s, Apr. 19, 1957, from rating curve extended above 3,600 ft³/s, on basis of velocity-area study.