US Army Corps of Engineers

John Day & Lake Umatilla

January 2023

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 18055 752 64 101.40 96.00 95.00 0.00 265.53 265.44 159.74 105.70
2 21204 884 64 122.90 112.50 111.60 0.00 265.93 265.62 160.03 105.59
3 23755 990 64 121.30 126.40 125.40 0.00 265.73 265.82 160.50 105.32
4 20892 871 64 105.30 110.60 109.80 0.00 265.53 265.58 159.76 105.82
5 20368 849 64 92.90 108.60 107.60 0.00 264.93 265.26 160.03 105.23
6 22609 942 64 136.40 120.70 119.70 0.00 265.53 265.22 160.34 104.88
7 19633 818 64 107.10 104.50 103.50 0.00 265.63 265.45 159.94 105.51
8 19924 830 63 111.40 106.20 105.10 0.00 265.83 265.70 160.22 105.48
9 21414 892 63 105.60 113.40 112.50 0.00 265.53 265.68 159.90 105.78
10 24012 1001 64 127.20 127.20 126.40 0.00 265.53 265.53 160.02 105.51
11 24506 1021 63 130.30 130.30 129.20 0.00 265.53 265.42 159.98 105.44
12 24059 1002 62 125.10 127.90 127.00 0.00 265.43 265.51 160.20 105.31
13 20433 851 61 113.90 108.60 107.70 0.00 265.63 265.29 159.87 105.42
14 20756 865 61 110.30 110.30 109.30 0.00 265.63 265.66 160.09 105.57
15 21096 879 61 114.40 111.80 110.80 0.00 265.73 265.58 159.77 105.81
16 22383 933 61 118.40 118.40 117.50 0.00 265.73 265.58 159.78 105.80
17 19465 811 61 100.80 103.40 102.50 0.00 265.63 265.50 159.87 105.63
18 23148 964 61 128.00 122.80 121.90 0.00 265.83 265.64 160.08 105.56
19 23772 990 61 123.60 126.10 125.50 0.00 265.73 265.61 160.53 105.08
20 24154 1006 60 120.10 128.00 127.60 0.00 265.43 265.39 160.30 105.09
21 123.90 126.50 126.10 0.00 265.33 265.33 160.24 105.09
22 116.40 111.20 110.80 0.00 265.53 265.24 160.19 105.05
23 132.40 132.40 132.00 0.00 265.53 265.47 160.29 105.18
24 113.40 113.40 113.00 0.00 265.53 265.41 160.15 105.26
25 117.40 117.40 117.10 0.00 265.53 265.48 160.03 105.45
26 110.50 115.80 115.50 0.00 265.33 265.46 160.23 105.23
27 105.90 113.70 113.20 0.00 265.03 265.15 160.37 104.78
28
29
30
31
TOT435637  1250        
AVG 21782 908 63 116.16 116.45 115.68 0.00 265.55 265.48 160.09 105.39
MAX 24506   136.40 132.40 132.00 0.00 265.93 265.82 160.53 105.82
MIN 18055   92.90 96.00 95.00 0.00 264.93 265.15 159.74 104.78
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