US Army Corps of Engineers

Wanapum Dam

Tuesday November 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 60.70 57.83 0.82 565.79 486.35 79.44
2 87.50 84.75 0.71 565.14 487.99 77.16
3 92.50 89.89 0.62 564.77 488.36 76.42
4 85.40 82.79 0.57 564.62 487.85 76.77
5 70.30 67.80 0.49 564.15 487.10 77.05
6 69.60 67.21 0.42 563.98 487.00 76.97
7 71.30 68.89 0.43 564.06 487.01 77.06
8 40.90 38.49 0.45 564.14 485.02 79.12
9 45.70 43.19 0.50 564.86 485.59 79.27
10 52.00 49.36 0.64 565.29 485.91 79.38
11 56.80 54.08 0.70 565.49 485.88 79.61
12 52.90 50.11 0.77 565.72 485.91 79.82
13 60.10 57.32 0.78 565.85 486.15 79.70
14 54.20 51.36 0.82 566.00 485.57 80.43
15 61.70 58.84 0.82 565.78 486.67 79.11
16 78.10 75.30 0.77 565.63 487.76 77.87
17 71.90 69.17 0.78 565.61 487.35 78.26
18 109.30 106.58 0.71 565.35 489.19 76.16
19 108.00 105.31 0.70 565.43 489.18 76.25
20 105.90 103.18 0.72 565.38 489.07 76.31
21 95.30 92.59 0.70 565.40 488.41 76.99
22 87.20 84.42 0.73 565.60 488.08 77.52
23 74.40 71.63 0.78 565.86 487.12 78.73
24 60.10 57.31 0.83 566.06 486.39 79.67
AVG 72.99 70.31 0.68 565.25 487.12 78.13
MAX 109.30 106.58 0.83 566.06 489.19 80.43
MIN 40.90 38.49 0.42 563.98 485.02 76.16