US Army Corps of Engineers

Wanapum Dam

Thursday October 23, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 93.40 89.73 1.69 568.70 488.89 79.81
2 84.50 80.86 1.59 568.59 488.36 80.23
3 94.90 91.33 1.55 568.32 489.02 79.30
4 88.20 84.73 1.45 567.95 488.52 79.43
5 79.70 76.34 1.37 567.78 488.24 79.54
6 87.00 83.66 1.29 567.47 488.65 78.81
7 60.40 57.12 1.24 567.40 486.90 80.50
8 44.90 41.54 1.33 567.85 486.26 81.59
9 48.40 45.05 1.37 567.98 486.53 81.45
10 43.60 40.09 1.48 568.39 486.33 82.07
11 47.00 43.48 1.54 568.50 486.43 82.07
12 50.10 46.51 1.56 568.67 486.48 82.19
13 48.70 45.03 1.65 569.00 486.55 82.45
14 45.10 41.34 1.73 569.20 486.38 82.82
15 49.50 45.73 1.77 569.32 486.58 82.74
16 52.60 48.77 1.82 569.48 486.64 82.84
17 59.70 55.83 1.85 569.46 487.30 82.16
18 86.70 82.87 1.80 569.27 489.09 80.18
19 136.70 132.91 1.78 569.30 491.31 77.99
20 115.70 111.89 1.80 569.38 490.16 79.22
21 105.00 101.17 1.79 569.29 489.96 79.33
22 93.30 89.44 1.82 569.51 489.40 80.10
23 94.00 90.14 1.87 569.47 489.38 80.09
24 116.70 112.88 1.77 569.06 490.43 78.63
AVG 76.08 72.44 1.62 568.72 488.07 80.65
MAX 136.70 132.91 1.87 569.51 491.31 82.84
MIN 43.60 40.09 1.24 567.40 486.26 77.99
BUILDING STRONG®