US Army Corps of Engineers

Wanapum Dam

Thursday January 22, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 164.00 162.60 0.00 571.20 493.60 77.60
2 164.70 163.28 0.00 571.00 493.80 77.20
3 158.80 157.37 0.00 570.83 493.54 77.29
4 159.70 158.26 0.00 570.77 493.62 77.15
5 159.50 158.11 0.00 570.62 493.37 77.25
6 160.10 158.70 0.00 570.54 493.60 76.94
7 164.10 162.69 0.00 570.63 493.72 76.91
8 154.70 153.29 0.00 570.71 493.33 77.38
9 149.50 148.06 0.00 570.66 493.12 77.54
10 157.20 155.76 0.00 570.82 493.48 77.34
11 151.10 149.68 0.00 570.96 493.08 77.89
12 155.40 154.02 0.00 570.89 493.44 77.45
13 153.70 152.34 0.00 571.10 493.06 78.04
14 159.80 158.37 0.00 571.14 493.61 77.53
15 157.00 155.56 0.00 571.03 493.38 77.65
16 148.50 147.12 0.00 570.74 493.06 77.68
17 152.10 150.68 0.00 570.81 493.30 77.51
18 152.10 150.73 0.00 570.78 493.13 77.65
19 158.20 156.78 0.00 570.52 493.26 77.26
20 155.50 154.10 0.00 570.75 493.20 77.55
21 154.30 152.93 0.00 570.91 493.15 77.76
22 155.70 154.29 0.00 570.85 493.30 77.55
23 155.00 153.56 0.00 570.83 493.03 77.81
24 155.50 154.09 0.00 570.62 493.30 77.32
AVG 156.51 155.10 0.00 570.82 493.35 77.47
MAX 164.70 163.28 0.00 571.20 493.80 78.04
MIN 148.50 147.12 0.00 570.52 493.03 76.91
BUILDING STRONG®