US Army Corps of Engineers

Wanapum Dam

Sunday October 26, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 58.60 54.93 1.72 568.96 487.27 81.69
2 59.30 55.59 1.70 568.87 487.84 81.03
3 92.90 89.26 1.60 568.38 489.52 78.86
4 109.90 106.45 1.47 568.20 489.63 78.57
5 41.10 37.61 1.52 568.35 485.83 82.52
6 45.40 41.92 1.44 567.93 486.88 81.05
7 37.80 34.44 1.39 568.06 486.12 81.94
8 37.10 33.61 1.51 568.48 486.09 82.39
9 33.50 29.96 1.52 568.31 486.02 82.29
10 43.60 40.10 1.54 568.57 486.38 82.19
11 41.80 38.19 1.63 568.84 486.17 82.67
12 35.10 31.36 1.69 569.08 486.01 83.08
13 33.80 30.08 1.76 569.38 485.81 83.57
14 35.00 31.16 1.87 569.65 485.85 83.80
15 57.80 53.92 1.91 569.76 486.90 82.86
16 47.60 43.71 1.93 569.85 486.15 83.70
17 48.60 44.59 1.98 569.91 486.54 83.37
18 50.70 46.69 1.99 569.93 486.87 83.07
19 111.80 107.88 1.95 569.91 489.90 80.01
20 123.20 119.22 1.94 569.77 490.82 78.94
21 102.20 98.33 1.92 569.74 489.30 80.44
22 72.80 68.94 1.89 569.65 488.15 81.51
23 96.10 66.23 27.90 569.39 488.93 80.46
24 103.90 80.06 21.84 568.95 488.72 80.23
AVG 63.32 57.68 3.65 569.08 487.40 81.68
MAX 123.20 119.22 27.90 569.93 490.82 83.80
MIN 33.50 29.96 1.39 567.93 485.81 78.57
BUILDING STRONG®