US Army Corps of Engineers

McNary Dam & Lake Wallula

March 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 113.60 117.90 113.40 0.00 338.89 339.01 264.52 74.49
2 124.30 120.50 114.20 1.60 339.07 339.01 264.44 74.57
3 120.00 124.10 119.40 0.00 338.89 338.98 264.54 74.44
4 122.30 125.90 119.60 1.60 338.71 338.73 264.64 74.09
5 115.10 122.30 117.60 0.00 338.31 338.51 264.72 73.79
6 117.70 115.30 109.30 1.50 338.44 338.27 264.82 73.45
7 120.80 102.90 98.50 0.00 339.39 339.07 264.75 74.32
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TOT           
AVG    119.11 118.41 113.14 0.67 338.81 338.80 264.63 74.16
MAX    124.30 125.90 119.60 1.60 339.39 339.07 264.82 74.57
MIN    113.60 102.90 98.50 0.00 338.31 338.27 264.44 73.45