US Army Corps of Engineers

Wanapum Dam & Lake

January 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 14300 596 22 102.30 106.00 104.80 0.00 566.36 566.48 490.23 76.25
2 11607 484 22 109.10 83.60 82.40 0.00 569.91 567.87 489.15 78.72
3 13280 553 22 113.70 105.00 93.90 10.10 571.09 571.03 490.43 80.60
4 16114 671 21 123.20 123.90 114.20 8.70 570.99 570.76 491.61 79.15
5 16398 683 20 110.50 119.10 118.10 0.00 569.81 569.28 491.45 77.83
6 16420 684 21 123.60 118.70 117.70 0.00 570.48 569.61 491.40 78.21
7 18163 757 21 135.00 131.40 130.40 0.00 570.97 570.57 491.93 78.64
8 19295 804 21 143.50 141.00 140.00 0.00 571.31 570.79 492.44 78.35
9 19481 812 22 141.40 143.20 142.20 0.00 571.06 570.55 492.57 77.98
10 18870 786 21 132.20 137.70 136.70 0.00 570.31 570.32 492.16 78.16
11 17960 748 21 132.80 131.50 130.50 0.00 570.50 569.91 491.95 77.96
12 17812 742 21 134.80 128.20 127.20 0.00 571.40 570.33 491.53 78.80
13 18585 774 21 121.30 136.50 134.60 0.90 569.31 570.53 492.28 78.25
14 18176 757 21 144.80 133.10 132.10 0.00 570.92 569.92 492.00 77.92
15 19421 809 22 152.40 148.30 141.30 6.00 571.47 571.18 492.88 78.30
16 20395 850 22 149.40 152.50 149.50 1.90 571.06 571.18 493.04 78.14
17 17836 743 22 114.10 129.60 128.60 0.00 568.92 570.23 491.85 78.38
18 17448 727 23 134.60 127.30 126.30 0.00 569.93 569.91 491.60 78.31
19 135.20 130.50 129.50 0.00 570.57 570.23 491.87 78.36
20 129.00 127.50 126.50 0.00 570.78 570.76 491.77 78.99
21 135.70 131.00 130.00 0.00 571.42 570.81 491.98 78.83
22 133.20 135.30 134.30 0.00 571.13 570.93 492.32 78.61
23 133.80 140.20 139.20 0.00 570.25 570.60 492.42 78.18
24 137.30 141.70 140.70 0.00 569.65 569.66 492.29 77.37
25 144.90 144.30 143.30 0.00 569.73 569.81 492.46 77.35
26
27
28
29
30
31
TOT311561  386        
AVG 17309 721 21 130.71 129.88 127.76 1.10 570.37 570.13 491.82 78.31
MAX 20395   152.40 152.50 149.50 10.10 571.47 571.18 493.04 80.60
MIN 11607   102.30 83.60 82.40 0.00 566.36 566.48 489.15 76.25