US Army Corps of Engineers

McNary Dam

Thursday September 11, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 81.20 76.50 0.00 339.12 265.65 73.47
2 77.50 72.80 0.00 339.10 265.56 73.54
3 76.70 72.00 0.00 338.97 265.60 73.37
4 61.80 57.10 0.00 339.21 265.31 73.90
5 61.40 55.20 1.50 339.20 265.48 73.72
6 71.00 56.40 10.00 339.32 265.70 73.62
7 89.50 74.80 10.00 339.28 266.01 73.27
8 90.10 75.30 10.10 339.34 265.88 73.46
9 89.80 75.10 10.10 339.30 265.74 73.56
10 61.70 56.60 0.30 339.40 265.15 74.25
11 61.00 56.30 0.00 339.38 265.34 74.04
12 60.70 56.00 0.00 339.29 265.50 73.79
13 60.80 56.10 0.00 339.41 265.72 73.69
14 60.30 55.60 0.00 339.45 265.61 73.84
15 68.50 63.80 0.00 339.38 265.63 73.75
16 68.60 63.90 0.00 339.32 265.47 73.85
17 88.40 83.70 0.00 339.31 265.80 73.51
18 91.50 86.80 0.00 339.37 266.01 73.36
19 90.20 85.50 0.00 339.37 265.93 73.44
20 89.50 84.80 0.00 339.28 265.73 73.55
21 89.30 84.60 0.00 339.26 265.72 73.54
22 76.10 71.40 0.00 339.35 265.42 73.93
23 61.80 57.10 0.00 339.23 265.38 73.85
24 60.90 56.20 0.00 339.16 265.53 73.63
AVG 74.51 68.07 1.75 339.28 265.62 73.66
MAX 91.50 86.80 10.10 339.45 266.01 74.25
MIN 60.30 55.20 0.00 338.97 265.15 73.27