USGS Water-Year Summary 2022
06861000 SMOKY HILL RIVER NEAR ARNOLD, KS
LOCATION - Lat 38°48'28", long 100°01'20" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.29, T.14 S., R.24 W., Trego County, KS, Hydrologic Unit 10260003, on left bank near downstream side of county highway bridge, 7.0 mi upstream from headwaters of Cedar Bluff Reservoir, 12 mi north of Arnold, and at mile 356.2.
DRAINAGE AREA - 5,220 mi². approximately.
PERIOD OF RECORD - February 1950 to current year. Prior to October 1950, published as "near Ransom."
GAGE - Water-stage recorder. Datum of gage is 2,196.925 ft. above NAVD88. Prior to Aug. 12, 2021 datum was 2,196.13 ft above NGVD of 1929. See WSP 1919 for history of changes prior to Sept. 30, 1961.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 30, 1938, reached a stage of about 19 ft, present site and datum, from information by local resident.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge for period of record, 23,800 cfs June 11, 1951, gage height, 12.57 ft, site and datum then in use. Maximum stage for period of record, 16.77 ft. on Aug. 24, 1960, discharge 16,400 cfs, site and datum then in use.