US Army Corps of Engineers

Wanapum Dam & Lake

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 6947 289 18 71.80 68.60 49.30 17.40 566.74 566.48 487.69 78.79
2 8942 373 18 85.10 83.50 64.30 17.20 566.96 566.25 488.42 77.83
3 8168 340 18 70.60 77.40 58.40 17.00 566.00 566.00 487.80 78.20
4 7486 312 18 90.60 72.50 53.30 17.20 568.52 566.38 488.05 78.33
5 5604 234 18 36.20 58.50 38.60 17.90 565.39 567.18 486.29 80.89
6 5914 246 18 81.90 84.40 42.40 40.00 565.04 565.25 487.41 77.84
7 7585 316 22 70.10 75.60 57.10 16.50 564.25 565.24 487.18 78.06
8 7839 327 19 93.50 76.20 55.80 18.40 566.71 565.71 487.35 78.36
9 10175 424 19 87.00 92.70 73.40 17.30 565.91 566.33 488.62 77.71
10 9391 391 19 76.30 87.30 68.60 16.60 564.35 565.38 488.38 77.00
11 9111 380 19 105.50 84.60 65.50 17.10 567.31 566.14 488.05 78.09
12 9109 380 19 87.60 84.80 65.00 17.90 567.69 567.28 488.56 78.72
13 10778 449 17 106.50 96.50 75.30 19.10 569.09 569.11 488.80 80.31
14 12406 517 14 108.50 113.00 88.70 22.20 568.47 568.45 489.80 78.65
15 14716 613 13 137.50 129.60 104.80 22.70 569.57 569.78 490.82 78.96
16 8617 359 13 113.70 111.30 60.30 49.10 569.90 569.87 489.49 80.38
17 125.60 123.50 88.50 33.00 570.18 570.26 490.39 79.87
18 143.20 140.50 103.40 35.10 570.57 570.81 491.78 79.03
19 126.80 141.60 80.80 58.80 568.53 569.96 491.61 78.35
20 145.00 139.30 113.50 23.80 569.32 569.51 491.38 78.13
21 141.70 138.50 116.80 19.70 569.75 569.87 491.26 78.61
22 135.10 136.30 112.40 21.90 569.58 570.01 491.37 78.64
23 143.50 142.40 120.60 19.90 569.73 570.14 491.61 78.53
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TOT142788  282        
AVG 8924 372 18 103.62 102.55 76.38 24.17 567.81 567.89 489.22 78.66
MAX 14716   145.00 142.40 120.60 58.80 570.57 570.81 491.78 80.89
MIN 5604   36.20 58.50 38.60 16.50 564.25 565.24 486.29 77.00