US Army Corps of Engineers

McNary Dam & Lake Wallula

December 2019

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 14962 623 96 117.80 125.10 120.40 0.00 338.25 338.50 266.01 72.49
2 15617 651 96 143.60 130.70 126.00 0.00 338.96 338.68 266.10 72.58
3 128.90 127.50 122.80 0.00 339.02 339.03 266.16 72.87
4 132.80 128.80 124.10 0.00 339.21 339.07 266.09 72.98
5 115.10 127.70 123.00 0.00 338.55 338.87 265.85 73.02
6 111.10 124.60 119.90 0.00 337.82 338.24 265.59 72.65
7 128.70 122.40 117.70 0.00 338.13 338.01 265.37 72.64
8 113.60 112.60 107.90 0.00 338.22 338.31 265.22 73.09
9 118.90 111.00 106.30 0.00 338.65 338.46 264.88 73.58
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TOT 30579  192        
AVG 15290 637 96 123.39 123.38 118.68 0.00 338.53 338.57 265.70 72.88
MAX 15617   143.60 130.70 126.00 0.00 339.21 339.07 266.16 73.58
MIN 14962   111.10 111.00 106.30 0.00 337.82 338.01 264.88 72.49