05052500 ANTELOPE CREEK AT DWIGHT, ND


List Of Figures:

Annual mean discharge
Annual flow duration


LOCATION.--Lat 4618'52'', long 9703'10'', in SE1/ 4 SE1/4 sec.20, T.133 N., R.48 W., Richland County, Hydrologic Unit 09020105, at bridge on former U.S. Highway 81 and about 0.5 mi north of Dwight.
DRAINAGE AREA.--293 mi2.
PERIOD OF RECORD.--October 1943-73, 1975, 1995 to current year. Operated as a continuous-record station water year 1944-49. Operated as a high-flow partial-record station water year 1950-73, 1975, 1995 to current year.
GAGE.--Crest-stage gage.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 9,000 ft3/s, Apr. 10, 1969, gage height, 17.82 ft; no flow at times.

Annual mean discharge

Annual mean discharge for 05052500 ANTELOPE CREEK AT DWIGHT, ND
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                              Statistics of monthly and annual mean discharges
                                             [--, no data]
__________________________________________________________________________________________________________

                  Maximum                  Minimum                              Mean
           ______________________   ______________________   _____________________________________________

                       Water year                 Water year              Standard     Coeffi-    Percentage
 Month     Discharge       of         Discharge       of       Discharge  deviation    cient of   of annual
            (ft3/s)    occurrence      (ft3/s)    occurrence    (ft3/s)     (ft3/s)    variation   discharge
__________________________________________________________________________________________________________

October    --          --            --          --            --          --          --         --
November   --          --            --          --            --          --          --         --
December   --          --            --          --            --          --          --         --
January    --          --            --          --            --          --          --         --
February   --          --            --          --            --          --          --         --
March      --          --            --          --            --          --          --         --
April      --          --            --          --            --          --          --         --
May        --          --            --          --            --          --          --         --
June       --          --            --          --            --          --          --         --
July       --          --            --          --            --          --          --         --
August     --          --            --          --            --          --          --         --
September  --          --            --          --            --          --          --         --
Annual     --          --            --          --            --          --          --         --

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Annual flow duration

Annual flow duration for 05052500 ANTELOPE CREEK AT DWIGHT, ND
----------------------------------------------------------------------------------------------
                              Monthly and annual flow duration, in cubic feet per second
_____________________________________________________________________________________________

 Percentage
  of days
 discharge   Jan.  Feb.  March  April  May  June  July  Aug.  Sept.  Oct.  Nov.  Dec.  Annual
 equaled or
  exceeded
_____________________________________________________________________________________________

  95         --    --    --     --     --   --    --    --    --     --    --    --    --
  90         --    --    --     --     --   --    --    --    --     --    --    --    --
  85         --    --    --     --     --   --    --    --    --     --    --    --    --
  80         --    --    --     --     --   --    --    --    --     --    --    --    --
  75         --    --    --     --     --   --    --    --    --     --    --    --    --
  70         --    --    --     --     --   --    --    --    --     --    --    --    --
  65         --    --    --     --     --   --    --    --    --     --    --    --    --
  60         --    --    --     --     --   --    --    --    --     --    --    --    --
  55         --    --    --     --     --   --    --    --    --     --    --    --    --
  50         --    --    --     --     --   --    --    --    --     --    --    --    --
  45         --    --    --     --     --   --    --    --    --     --    --    --    --
  40         --    --    --     --     --   --    --    --    --     --    --    --    --
  35         --    --    --     --     --   --    --    --    --     --    --    --    --
  30         --    --    --     --     --   --    --    --    --     --    --    --    --
  25         --    --    --     --     --   --    --    --    --     --    --    --    --
  20         --    --    --     --     --   --    --    --    --     --    --    --    --
  15         --    --    --     --     --   --    --    --    --     --    --    --    --
  10         --    --    --     --     --   --    --    --    --     --    --    --    --
  5          --    --    --     --     --   --    --    --    --     --    --    --    --

---------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
                            Probability of annual high discharges
                            [ng, statistic not given; --, no data]
__________________________________________________________________________________________________

                                                       Maximum average discharge
                                                               (ft3/s)
                                       ___________________________________________________________

             Recurrence     Maximum
Exceedance    interval   instantaneous  3-day period  7-day period  15-day period  30-day period
probability    (years)      (ft3/s)
__________________________________________________________________________________________________

  0.99         1.01         ng           --            --            --             --
  0.95         1.05         26.4         --            --            --             --
  0.90         1.11         53.6         --            --            --             --
  0.80         1.25         120          --            --            --             --
  0.50         2            491          --            --            --             --
  0.20         5            1,680        --            --            --             --
  0.10         10           2,980        --            --            --             --
  0.04         25           5,230        --            --            --             --
  0.02         50           7,340        --            --            --             --
  0.01         100          9,780        --            --            --             --
  0.005        200          12,600       --            --            --             --
  0.002        500          16,700       --            --            --             --

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           Annual peak discharge and corresponding gage height, period of record
                                 [--, no data]
_____________________________________________________________________________________

                       Gage     Peak                          Gage     Peak
Water    Date         height  discharge   Water    Date      height  discharge
year                  (feet)   (ft3/s)    year               (feet)   (ft3/s)
_____________________________________________________________________________________

          Annual peak discharge, by year, and corresponding gage height

1943    April1      16.00  --           1961    March 5     3.26     10.0
1944    July 5      6.98     460        1962    May 24      12.60    1,300
1945    March 19    9.50     868        1963    June 12     6.22     295
1946    March 21    12.33    1,360      1964    June 19     4.27     120
1947    April 12    11.34    1,160      1965    April 11    12.08    1,080
1948    April 6     5.00     120        1966    March 17    13.21    1,300
1949    March 31    5.80     270        1967    June 14     12.93    1,250
1950    May 9       9.90     893        1968    April 28    2.61     20.0
1951    April 4     13.26    1,700      1969    April 10    17.82    9,000
1952    April 8     16.31    3,670      1970    June 20     4.80     134
1953    May 30      8.53     578        1971    March 17    6.36     288
1954    June 11     4.39     111        1972    March 18    13.90    1,650
1955    March 31    6.58     341        1973    March 15    5.75     169
1956    April 11    5.88     237        1975    July 3      15.00    1,800
1957    April 20    4.70     134        1995    March 16    8.58     1,500
1958    April 7     3.22     50.0       1996    May 18      9.10     1,990
1959    March 18    2.62     2.00       1997    April 16    12.25    3,500
1960    April 7     4.08     78.0

Annual peak discharge, from highest to lowest, and corresponding gage height

1969    April 10    17.82    9,000      1955    March 31    6.58     341
1952    April 8     16.31    3,670      1963    June 12     6.22     295
1997    April 16    12.25    3,500      1971    March 17    6.36     288
1996    May 18      9.10     1,990      1949    March 31    5.80     270
1975    July 3      15.00    1,800      1956    April 11    5.88     237
1951    April 4     13.26    1,700      1973    March 15    5.75     169
1972    March 18    13.90    1,650      1957    April 20    4.70     134
1995    March 16    8.58     1,500      1970    June 20     4.80     134
1946    March 21    12.33    1,360      1948    April 6     5.00     120
1962    May 24      12.60    1,300      1964    June 19     4.27     120
1966    March 17    13.21    1,300      1954    June 11     4.39     111
1967    June 14     12.93    1,250      1960    April 7     4.08     78.0
1947    April 12    11.34    1,160      1958    April 7     3.22     50.0
1965    April 11    12.08    1,080      1968    April 28    2.61     20.0
1950    May 9       9.90     893        1961    March 5     3.26     10.0
1945    March 19    9.50     868        1959    March 18    2.62     2.00
1953    May 30      8.53     578        1943    April1      16.00  --
1944    July 5      6.98     460


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1 Day of month unknown.
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                             Monthly and annual mean discharges, in cubic feet per second
                [Data were not rounded in accordance with U.S. Geological Survey publication standards]
____________________________________________________________________________________________________________

Year    Oct.    Nov.    Dec.    Jan.  Feb.  March   April   May     June    July    Aug.    Sept.    Annual
___________________________________________________________________________________________________________

1944    0       0       0       0     0     4.25    19.3    7.44    33.2    83.8    29.4    13.0    15.9
1945    0.73    3.92    0.35    0     0     173     26.2    3.64    16.3    0       0       0       18.9
1946    0       0       0       0     0     217     10.4    0.05    0       6.79    0.04    0       19.9
1947    0       0       0       0     0     40.9    202     1.21    4.23    0.36    0       0       20.5
1948    0       0       0       0     0     0.10    32.0    0.47    0       0       0       0       2.67
1949    0       0       0       0     0     16.9    23.5    0.10    0.01    25.0    1.33    0       5.61

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