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
13 106.50 96.50 75.30 19.10 569.09 569.11 488.80 80.31
14 108.50 113.00 88.70 22.20 568.47 568.45 489.80 78.65
15 137.50 129.60 104.80 22.70 569.57 569.78 490.82 78.96
16 113.70 111.30 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
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TOT 96271  225        
AVG 8023 334 19 95.68 94.85 68.08 24.76 567.43 567.47 488.76 78.70
MAX 10175   143.20 141.60 104.80 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