US Army Corps of Engineers

McNary Dam & Lake Wallula

June 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 6346 264 96 242.10 256.20 51.20 200.30 338.95 339.49 267.54 71.95
2 236.90 226.90 50.80 171.40 339.46 339.22 266.84 72.38
3 217.60 235.40 50.70 180.00 338.53 339.15 266.99 72.16
4 218.90 220.00 51.00 164.30 338.46 338.58 266.77 71.81
5 214.20 212.80 50.90 157.20 338.55 338.56 266.34 72.22
6 227.40 225.60 51.20 169.80 338.64 338.74 266.38 72.36
7 220.90 221.20 50.50 165.90 338.62 338.63 266.24 72.39
8 217.00 214.70 50.10 159.90 338.73 338.72 265.91 72.81
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TOT 6346  96        
AVG 6346 264 96 224.38 226.60 50.80 171.10 338.74 338.89 266.63 72.26
MAX 6346   242.10 256.20 51.20 200.30 339.46 339.49 267.54 72.81
MIN 6346   214.20 212.80 50.10 157.20 338.46 338.56 265.91 71.81