US Army Corps of Engineers

McNary Dam

Wednesday November 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 84.80 61.70 18.40 338.50 266.17 72.33
2 85.20 62.10 18.40 338.48 266.18 72.30
3 85.10 62.10 18.40 338.48 266.10 72.38
4 84.50 61.40 18.30 338.47 265.96 72.51
5 81.00 60.90 15.40 338.51 266.11 72.40
6 98.60 75.50 18.40 338.41 266.57 71.84
7 120.40 97.50 18.20 338.46 266.97 71.49
8 120.60 97.50 18.40 338.54 266.67 71.87
9 108.30 85.10 18.60 338.60 266.21 72.39
10 98.50 75.20 18.60 338.60 265.92 72.68
11 88.60 65.20 18.70 338.67 265.75 72.92
12 88.60 65.10 18.80 338.69 266.04 72.65
13 87.80 64.20 18.90 338.75 266.24 72.51
14 88.00 64.50 18.80 338.66 266.11 72.55
15 87.60 64.10 18.80 338.74 265.95 72.79
16 86.60 64.80 17.00 338.71 265.85 72.86
17 91.90 68.50 18.80 338.66 266.04 72.62
18 92.80 69.40 18.70 338.64 266.19 72.45
19 92.90 69.50 18.70 338.62 266.18 72.44
20 93.40 70.10 18.60 338.55 266.07 72.48
21 93.50 70.30 18.50 338.49 265.88 72.61
22 92.80 69.70 18.40 338.47 265.81 72.66
23 91.40 68.40 18.30 338.43 265.85 72.58
24 90.90 68.00 18.30 338.38 265.99 72.39
AVG 93.08 70.03 18.35 338.56 266.12 72.45
MAX 120.60 97.50 18.90 338.75 266.97 72.92
MIN 81.00 60.90 15.40 338.38 265.75 71.49
BUILDING STRONG®