US Army Corps of Engineers

Wanapum Dam & Lake

May 2020

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 17256 719 18 151.90 148.10 126.80 19.30 569.83 569.39 492.37 77.02
2 15919 663 18 137.40 136.80 115.30 19.60 569.90 569.75 491.88 77.87
3 15234 635 18 130.30 131.10 109.30 19.80 569.79 570.01 491.49 78.52
4 17497 729 18 164.60 152.40 126.20 24.20 571.45 570.75 492.29 78.46
5 17786 741 18 176.70 178.30 130.10 46.20 571.23 571.23 493.94 77.29
6 16884 704 18 162.90 166.70 123.40 41.30 570.71 570.72 493.38 77.34
7 18503 771 18 170.30 165.60 134.80 28.90 571.34 571.05 493.24 77.81
8 18547 773 19 165.30 165.70 135.30 28.40 571.28 571.03 493.31 77.72
9 17119 713 19 188.30 188.20 125.70 60.50 571.30 571.18 494.07 77.11
10 16106 671 19 188.20 189.30 118.00 69.30 571.15 571.11 494.17 76.94
11 16638 693 18 197.10 198.20 122.60 73.60 571.00 571.12 494.63 76.49
12 17134 714 19 195.80 193.70 126.50 65.30 571.28 571.23 494.56 76.67
13 17284 720 19 201.70 203.80 128.70 73.10 570.99 571.18 495.05 76.13
14 17291 720 18 212.20 209.70 129.20 78.40 571.33 571.21 495.40 75.81
15 16673 695 20 213.10 214.00 125.00 87.00 571.21 571.19 495.52 75.67
16 16379 682 18 210.60 210.20 121.70 86.50 571.27 571.29 495.21 76.08
17 17177 716 18 208.30 209.60 128.40 79.20 571.10 571.22 495.29 75.93
18 16280 678 18 210.30 208.50 121.50 85.00 571.34 571.30 495.12 76.18
19 14936 622 18 216.80 217.80 111.40 104.40 571.20 571.22 495.44 75.78
20 16658 694 18 215.30 227.70 127.30 98.40 569.51 570.45 495.65 74.80
21 15704 654 19 197.80 188.80 116.80 70.00 570.75 570.75 494.10 76.65
22 195.30 194.70 136.50 56.20 570.83 571.11 494.82 76.29
23 200.20 198.00 127.00 69.00 571.13 571.05 494.99 76.06
24 213.00 212.30 131.50 78.80 571.23 571.19 495.41 75.78
25 203.90 205.10 117.40 85.70 571.06 571.21 494.99 76.22
26 194.50 194.10 109.00 83.10 571.12 571.18 494.61 76.57
27 216.90 216.70 134.60 80.10 571.15 571.21 495.65 75.56
28 224.90 224.10 136.80 85.30 571.26 571.22 495.89 75.33
29
30
31
TOT353005  386        
AVG 16810 700 18 191.56 191.04 124.89 64.16 570.96 570.95 494.37 76.57
MAX 18547   224.90 227.70 136.80 104.40 571.45 571.30 495.89 78.52
MIN 14936   130.30 131.10 109.00 19.30 569.51 569.39 491.49 74.80