US Army Corps of Engineers

Wanapum Dam

Friday January 23, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 160.50 159.05 0.00 570.59 493.26 77.34
2 158.50 157.06 0.00 570.31 493.38 76.93
3 162.20 160.82 0.00 570.25 493.46 76.79
4 160.20 158.83 0.00 570.08 493.39 76.68
5 161.10 159.68 0.00 569.89 493.41 76.48
6 165.40 164.02 0.00 569.72 493.61 76.11
7 144.90 143.48 0.00 569.77 492.70 77.06
8 129.60 128.16 0.00 570.09 492.25 77.84
9 150.10 148.66 0.00 570.13 492.70 77.43
10 142.00 140.65 0.00 570.15 492.59 77.56
11 158.10 156.74 0.00 570.15 493.08 77.07
12 141.10 139.74 0.00 570.36 492.34 78.02
13 130.90 129.54 0.00 570.21 491.89 78.31
14 130.70 129.31 0.00 570.29 491.91 78.38
15 129.70 128.25 0.00 570.48 491.83 78.65
16 139.60 138.24 0.00 570.34 492.34 78.00
17 154.20 152.82 0.00 570.15 493.02 77.14
18 151.10 149.73 0.00 570.18 492.69 77.50
19 153.90 152.47 0.00 570.22 492.74 77.48
20 158.10 156.74 0.00 569.99 493.06 76.92
21 170.50 169.07 0.00 569.86 493.67 76.19
22 150.10 148.70 0.00 570.24 492.62 77.62
23 151.60 150.21 0.00 570.16 492.71 77.44
24 153.60 152.18 0.00 570.27 492.87 77.41
AVG 150.32 148.92 0.00 570.16 492.81 77.35
MAX 170.50 169.07 0.00 570.59 493.67 78.65
MIN 129.60 128.16 0.00 569.72 491.83 76.11