Table 6
MEAN ANNUAL DISCHARGES AND PERCENTAGES OF NORMAL
ANNUAL JAN-JUL APR-JUL APR-SEP
RIVER STATION
DISC 1 % DISC 1 % DISC 1 % DISC 1 %
Columbia R bl Mica* 21.43 105 23.39 101 37.43 100 24.95 107
Columbia R bl Arrow* 44.66 105 53.00 106 83.77 106 55.84 110
Kootenay R at Ft Steele 6.94 112 9.02 110 14.73 112 9.82 117
Kootenai R bl Libby* 12.40 109 16.52 109 25.73 108 17.15 112
Duncan R bl Duncan* 4.00 111 4.54 105 7.41 106 4.94 115
Kootenay R at Queens Bay* 33.29 119 45.37 119 69.41 117 46.28 120
Columbia R at Birchbank* 83.13 114 104.77 113 163.59 113 109.06 118
Clark Fork ab Missoula 2.99 95 4.04 95 5.75 94 3.83 93
Clark Fork at St Regis 7.81 104 11.03 106 16.17 106 10.78 106
MF Flathead R nr W Glacier 2.79 96 4.16 98 6.65 98 4.44 99
SF Flathead R nr Columbia Falls* 3.42 94 5.32 99 8.42 99 5.61 99
Flathead R bl Kerr nr Polson* 10.83 93 16.30 96 25.53 97 17.02 97
Clark Fork nr Plains* 19.26 96 27.90 98 42.27 98 28.18 98
Pend Oreille R at Newport* 25.24 97 37.28 100 54.71 101 36.47 100
Spokane R nr Spokane* 7.46 113 11.08 114 12.29 109 8.19 110
Columbia R bl Grand Coulee* 126.56 112 69.651 113 252.78 112 168.52 115
Okanogan R nr Tonasket 4.02 141 5.76 143 8.73 144 5.82 150
Wenatchee R at Peshastin 3.84 125 5.46 127 8.13 133 5.42 139
Columbia R bl Priest Rapids* 145.21 117 194.42 118 287.69 116 191.80 120
Yakima R at Cle Elum* 2.42 117 3.25 118 4.32 126 2.88 127
Yakima R nr Parker* 5.91 127 8.25 132 10.72 144 7.14 146
Snake R nr Heise* 8.71 120 11.65 122 17.57 123 11.71 122
Boise R nr Boise* 3.34 117 5.02 120 7.10 121 4.73 120
Payette R nr Emmett* 3.64 123 5.37 137 6.55 134 4.37 123
Snake R at Hells Canyon* 26.10 126 33.28 136 34.20 135 22.80 129
Salmon R at White Bird 13.52 116 19.45 119 29.41 119 19.60 118
Grande Ronde R at Troy 3.80 130 5.60 132 6.06 121 4.04 119
Clearwater R at Orofino* 9.93 110 15.22 112 21.56 111 14.37 110
NF Clearwater R bl Dworshak* 6.72 117 10.08 120 13.17 118 8.78 117
Clearwater R at Spalding* 17.45 113 26.30 114 34.42 109 22.95 109
Snake R bl Lower Granite* 61.33 117 85.80 121 106.52 119 71.01 117
Columbia R at The Dalles* 217.02 115 295.08 117 406.16 116 270.77 117
McKenzie R nr Vida* 5.24 128 5.88 124 5.19 131 3.46 130
N Santiam R nr Mehama* 4.37 128 4.85 123 4.01 134 2.68 131
S Santiam R at Waterloo* 3.89 129 4.33 125 2.84 129 1.89 124
Willamette R at Salem* 31.52 133 36.66 130 21.63 125 14.42 123
Rogue R at Raygold* 4.12 134 5.00 124 3.88 132 2.59 131
Cowlitz R at Castle Rock* 11.25 120 13.05 116 11.67 121 7.78 126
Skagit R nr Concrete* 17.16 112 20.18 112 25.69 117 17.13 121
1
Average discharge in kcfs. * Adjusted for upstream storage. From NWRFC Runoff Processor