US GEOLOGICAL SURVEY, OREGON WATER SCIENCE CENTER
COMPARATIVE FLOW TABLE FOR APRIL 2007
------------------- Change ------------------- ------------
Monthly mean in dis- Discharge near Accumulated
discharge charge end of month Runoff
------------------- from ------------------- ------------
Cubic Percent previous Cubic Oct-Apr
feet per of month feet per Percent of
Station second average (percent) second Date Average
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Donner Und Blitzen 184 79 +64 281 30 72
nr Frenchglen, OR
Williamson River 1,414 72 -19 1,200 30 77
nr Chiloquin, OR
Imnaha River 688 74 +43 1,190 30 86
at Imnaha, OR
Umatilla River 357 168 -26 320 30 101
nr Gibbon, OR
John Day River 3,808 72 -12 3,770 30 78
at Service Creek, OR
Columbia River 229,100 105 +14 233,000 30 93
at The Dalles, OR
Willamette River 18,550 78 -39 15,900 30 103
at Salem, OR
Wilson River 900 77 -62 622 30 127
nr Tillamook, OR
Umpqua River 7,476 78 -45 5,910 30 99
nr Elkton, OR
Rogue River 5,121 73 -49 4,640 30 95
nr Agness,OR
Naselle River 304 77 -69 270 30 114
nr Naselle, WA
Chehalis River 2,167 72 -63 1,280 30 120
nr Grand Mound, WA
Queets River nr 3,880 92 -62 4,430 30 121
Clearwater, WA(1974-2000)
Dungeness River 344 104 -17 350 30 113
nr Sequim, WA
Skykomish River 4,558 105 -49 5,230 30 127
nr Gold Bar, WA
Nooksack River at 4,617 124 -47 6,030 30 127
Ferndale, WA
Kettle River 2,941 102 +376 4,190 30 87
nr Ferry, WA
Methow River 3,567 207 +114 4,430 30 183
nr Pateros, WA
Wenatchee River at 5,094 121 -14 6,010 30 141
Monitor, WA
American River 339 113 -28 409 30 153
nr Nile, WA
Palouse River 669 57 -54 407 30 82
at Hooper, WA
Walla Walla River 724 72 -49 502 30 93
nr Touchet, WA
Klickitat River 2,114 95 -27 2,110 30 110
nr Pitt, WA
East Fork Lewis River 572 65 -60 373 30 103
nr Heisson, WA
Cowlitz River 4,966 88 -46 4,960 30 125
nr Kosmos,
Snake River 2,966 36 +78 8,180 30 56
nr Heise, ID
Bruneau River 475 60 +74 804 30 64
nr Hot Spring, ID
Boise River 1,761 82 +30 3,000 30 97
nr Twin Springs, ID
Snake River 11,790 39 -12 12,000 30 58
at Weiser, ID
Salmon River 11,560 98 +52 23,700 30 100
at White Bird, IDx
Lochsa River 4,365 94 +38 7,710 30 111
nr Lowell, ID
Clearwater River 20,220 88 +20 35,400 30 87
at Spalding, ID
Yaak River 2,110 107 +5 2,970 30 132
nr Troy, MT
Blackfoot River 2,026 94 +32 3,590 30 116
nr Bonner, MT
Clark Fork 8,632 96 +21 13,300 30 109
at St. Regis, MT
MF Flathead River 3,695 112 +13 7,330 30 146
nr West Glacier, MT
Percent of average computed using 30-year base period, wtr yrs 1971-2000 except where noted.
05/01/07