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Table A
Watershed Precipitation and Inflows
Great Plains Region
Data for the month of April 2007
  Month's
Precipitation
Inches
Average
Monthly
Precipitation
Inches
Percent
of
Average
Month's
Inflow
Acre-Feet
Average
Monthly
Inflow
Acre-Feet
Percent
of
Average
 
Upper Missouri Basin
Clark Canyon 1.63 1.22 134% 6800 21800 31%  
Canyon Ferry 0.82 0.91 90% 246900 347700 71%  
Gibson 1.23 1.45 85% 43700 40200 109%  
Lake Elwell 1.52 0.86 177% 46000 63300 73%  
Milk River Basin
Sherburne 1.20 1.24 97% 12100 9000 134%  
Fresno 2.13 0.87 245% 43600 39700 110% (1)
Bighorn River Basin
Bull Lake 0.25 1.11 23% 2800 3700 76%  
Boysen 0.27 1.18 23% 31400 49100 64%  
Buffalo Bill 1.83 1.27 144% 40900 41400 99%  
Bighorn 1.96 2.10 93% 100600 173900 58%  
Heart River Basin
Dickinson 0.87 1.76 49% 403 4175 10%  
Lake Tschida 1.49 1.70 88% 1611 22741 7%  
Cheyenne River Basin
Angostura 6.96 7.24 96% 1506 7792 19% (2)
Belle Fourche 3.17 7.39 43% 14056 13990 100% (3)
Deerfield 1.22 2.19 56% 644 1184 54%  
Keyhole 1.76 3.24 54% 2294 2509 91% (4)
Pactola 1.69 2.36 72% 1922 4181 46%  
Grand River Basin
Shadehill 2.66 3.29 81% 2264 18414 12% (5)
James River Basin
Jamestown 0.47 1.36 35% 4268 18065 24%  
CBT Project
Green Mountain 2.55 1.71 149% 20600 17400 118%  
Willow Creek 0.32 1.63 20% 5000 3800 132%  
Lake Granby 0.32 1.63 20% 16100 11900 135%  
Lake Estes 1.29 2.26 57% 4000 2600 154% (6)
Fryingpan-Arkansas Project
Ruedi 1.68 1.24 135% 9200 7000 131%  
Turquoise 2.19 1.39 158% 1400 900 156%  
Twin Lakes 1.12 0.78 144% 2700 1700 159%  
Pueblo 2.56 1.55 165% 24000 18500 130%  
North Platte River Basin
Seminoe 0.57 1.10 52% 90400 101600 89%  
Pathfinder 0.35 1.47 24% 8700 20500 42%  
Glendo 0.56 1.24 45% 29900 3700 808% (7)
Guernsey 1.66 1.63 102% -100 4100 NA (8)
Republican River Basin
Bonny 1.91 1.53 125% 1176 2100 56%  
Swanson Lake 4.93 1.75 282% 6563 9400 70%  
Enders 3.61 1.83 197% 603 2700 22%  
Hugh Butler Lake 5.67 1.86 305% 1973 1800 110%  
Harry Strunk Lake 6.61 1.82 363% 5483 4100 134%  
Keith Sebelius Lake 3.17 2.42 131% 884 700 126%  
Harlan County Lake 2.78 1.95 143% 30803 21300 145%  
Lovewell 1.57 2.39 66% 4623 4600 101% (9)
Solomon River Basin
Kirwin 1.55 2.03 76% 2657 2900 92%  
Webster 1.83 2.00 92% 3118 3600 87%  
Glen Elder 2.16 2.29 94% 4990 22100 23%  
Smoky Hill River Basin
Cedar Bluff 2.64 1.83 144% 2015 2500 81%  
Niobrara River Basin
Box Butte 1.57 1.68 93% 1438 2200 65%  
Merritt 3.38 2.29 148% 26703 16100 166%  
Lower Platte River Basin
Calamus 6.31 2.48 254% 27550 24600 112%  
Davis Creek 4.78 2.75 174% 2919 3400 86% (10)
Arkansas River Basin
Cheney 2.91 2.34 124% 30600 17709 173%  
Norman 2.60 3.29 79% 4087 10861 38%  
Sanford (Meredith) 2.44 1.11 220% 8968 7197 125%  
Red River Basin
Altus 2.09 2.38 88% 27826 2848 977%  
Arbuckle 3.70 3.77 98% 11138 7486 149%  
McGee Creek 3.80 7.04 54% 8931 29477 30%  
Mountain Park 1.12 2.44 46% 13160 3129 421%  
Nueces River Basin
Choke Canyon 2.57 2.33 110% 13311 11133 120%  
Colorado River Basin
Twin Buttes 1.23 0.96 128% 3639 5432 67%  
Nasworthy 1.65 1.50 110% 691 4141 17%  
Washita River Basin
Foss 3.12 2.14 146% 12338 7908 156%  
Fort Cobb 2.91 2.60 112% 4383 5606 78%  
(1) Includes diversions fron the St Milk River
(2) Angostura's precipitation includes sum of Oelrichs, SD, Hot Springs, SD, New Castle, WY & Red Bird, WY
(3) Belle Fourche's precipitation includes sum of Newell, SD, Spearfish, SD and Sundance, WY
(4) Keyhole's precipitation includes sum of Gillette and Sundance, WY
(5) Shadehill's precipitation includes sum of Camp Crook and Lemmon, SD
(6) Includes water only from Big Thompson River
(7) River gain between Alcova and Glendo Reservoirs
(8) River gain between Glendo and Guernsey Reservoirs
(9) Includes diversion from the Upper Courtland Canal
(10) Includes diversions from the North Loup and Calamus Rivers
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