US Army Corps of Engineers

McNary Dam & Lake Wallula

December 2023

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 13814 576 96 107.70 115.40 110.70 0.00 338.63 338.96 266.27 72.69
2 101.50 102.50 97.80 0.00 338.54 338.62 265.60 73.02
3 89.40 100.10 95.40 0.00 337.95 338.19 264.91 73.28
4 83.50 85.00 80.30 0.00 337.92 337.93 264.25 73.68
5 78.30 72.50 67.80 0.00 338.24 337.92 263.65 74.27
6 79.20 73.50 68.80 0.00 338.51 338.35 263.60 74.75
7 87.30 90.10 85.40 0.00 338.36 338.35 264.29 74.06
8 109.60 97.30 92.60 0.00 339.02 338.66 265.10 73.56
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TOT 13814  96        
AVG 13814 576 96 92.06 92.05 87.35 0.00 338.40 338.37 264.71 73.66
MAX 13814   109.60 115.40 110.70 0.00 339.02 338.96 266.27 74.75
MIN 13814   78.30 72.50 67.80 0.00 337.92 337.92 263.60 72.69