US Army Corps of Engineers

Wanapum Dam

Saturday October 31, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 41.30 38.12 1.21 566.84 485.91 80.93
2 53.40 50.38 1.04 566.76 487.23 79.53
3 33.30 30.25 1.05 567.03 485.46 81.57
4 32.10 28.92 1.14 566.78 485.44 81.34
5 52.40 49.39 0.99 566.62 486.41 80.21
6 32.50 29.45 1.09 567.21 484.85 82.36
7 36.20 32.96 1.20 567.18 485.49 81.70
8 46.30 43.13 1.17 567.34 485.70 81.64
9 44.70 41.42 1.29 568.04 485.11 82.93
10 48.00 44.51 1.45 568.24 485.53 82.71
11 57.00 53.47 1.51 568.61 486.23 82.38
12 52.70 49.01 1.65 569.10 485.80 83.30
13 47.90 44.18 1.76 569.23 485.58 83.64
14 54.40 50.66 1.75 569.10 486.49 82.61
15 68.80 65.05 1.71 569.05 487.72 81.33
16 105.20 101.53 1.68 568.81 489.50 79.31
17 107.30 103.70 1.56 568.29 489.70 78.58
18 90.00 86.55 1.49 568.20 489.00 79.20
19 96.90 93.40 1.45 568.13 489.51 78.63
20 106.70 103.31 1.43 568.07 489.92 78.16
21 134.60 131.25 1.39 567.86 491.16 76.71
22 125.40 122.04 1.39 568.09 490.60 77.49
23 77.60 74.14 1.47 568.24 488.19 80.04
24 95.50 91.98 1.47 568.22 489.28 78.94
1 110.40 106.99 1.42 567.82 490.05 77.77
AVG 70.02 66.63 1.39 567.95 487.43 80.52
MAX 134.60 131.25 1.76 569.23 491.16 83.64
MIN 32.10 28.92 0.99 566.62 484.85 76.71