US Army Corps of Engineers

John Day & Lake Umatilla

May 2024

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 14638 610 51 158.00 152.70 77.60 73.80 265.63 265.47 160.50 104.97
2 14944 623 52 154.60 154.60 79.10 74.20 265.63 265.59 160.34 105.25
3 15497 646 51 157.60 160.10 81.70 77.00 265.53 265.59 159.93 105.66
4 15139 631 50 151.50 159.40 80.10 77.80 265.23 265.41 160.11 105.30
5 15564 648 53 163.00 160.40 82.80 76.10 265.33 265.22 160.41 104.81
6 14199 592 52 142.50 145.10 75.30 68.60 265.20 265.27 160.06 105.21
7 14072 586 51 148.30 140.50 74.70 64.40 265.53 265.30 159.98 105.32
8 15126 630 47 163.90 156.10 80.00 74.70 265.83 265.67 160.12 105.55
9 15532 647 50 159.00 164.30 82.30 80.70 265.63 265.84 160.35 105.49
10 17140 714 48 182.70 182.70 91.20 90.30 265.63 265.70 160.77 104.93
11 15969 665 48 172.00 172.10 84.50 86.50 265.63 265.67 160.13 105.54
12 16646 694 46 164.70 175.20 88.80 85.20 265.23 265.36 160.56 104.80
13 16725 697 46 183.50 173.00 88.90 82.80 265.63 265.39 160.57 104.82
14 20180 841 51 210.00 212.50 108.40 102.90 265.53 265.64 161.49 104.15
15 21814 909 50 237.80 238.40 117.40 119.70 265.53 265.44 161.34 104.10
16 21403 892 48 233.20 241.10 116.00 123.90 265.23 265.43 161.95 103.48
17 227.30 227.30 108.70 117.30 265.23 265.09 161.87 103.22
18 227.40 230.00 112.70 115.90 265.13 265.17 161.12 104.05
19 254.10 246.30 119.40 125.60 265.43 265.34 161.58 103.76
20 247.70 245.00 118.60 125.00 265.53 265.37 161.20 104.17
21 223.10 228.40 111.40 115.60 265.33 265.35 160.99 104.36
22 224.30 211.20 106.40 103.60 265.83 265.47 161.77 103.70
23 226.20 236.70 117.90 117.50 265.43 265.71 161.73 103.98
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TOT264588  793        
AVG 16537 689 50 191.84 191.87 95.82 94.74 265.47 265.46 160.82 104.64
MAX 21814   254.10 246.30 119.40 125.60 265.83 265.84 161.95 105.66
MIN 14072   142.50 140.50 74.70 64.40 265.13 265.09 159.93 103.22