US Army Corps of Engineers

Wanapum Dam

Wednesday October 22, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 120.40 116.85 1.51 568.00 490.67 77.34
2 96.60 93.17 1.40 567.87 489.45 78.43
3 94.60 91.22 1.34 567.72 489.26 78.46
4 97.70 94.47 1.22 567.23 489.36 77.87
5 59.00 55.77 1.18 567.13 486.86 80.28
6 92.20 89.11 1.08 566.79 489.23 77.56
7 60.70 57.67 1.07 566.92 487.43 79.50
8 57.10 53.95 1.17 567.33 487.38 79.95
9 48.00 44.80 1.19 567.39 487.02 80.37
10 40.90 37.58 1.33 568.16 486.48 81.69
11 44.90 41.41 1.45 568.02 487.15 80.87
12 53.20 49.80 1.41 568.13 487.02 81.11
13 47.70 44.19 1.51 568.60 486.88 81.73
14 50.60 46.98 1.59 568.61 486.91 81.70
15 54.50 50.88 1.60 568.79 487.02 81.77
16 43.70 39.97 1.69 569.12 486.44 82.68
17 41.40 37.66 1.74 569.13 486.71 82.42
18 78.80 75.05 1.72 569.09 488.80 80.29
19 84.80 81.01 1.78 569.45 488.60 80.85
20 72.60 68.79 1.82 569.29 488.20 81.08
21 76.50 72.67 1.80 569.33 488.34 80.98
22 80.30 76.49 1.80 569.35 488.44 80.92
23 90.90 87.11 1.79 569.16 488.82 80.35
24 86.40 82.64 1.75 569.14 488.52 80.62
AVG 69.73 66.22 1.50 568.32 487.96 80.37
MAX 120.40 116.85 1.82 569.45 490.67 82.68
MIN 40.90 37.58 1.07 566.79 486.44 77.34