US Army Corps of Engineers

Wanapum Dam

Thursday December 18, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 148.60 147.15 0.00 570.63 493.13 77.50
2 150.60 149.24 0.00 570.71 493.04 77.67
3 151.60 150.16 0.00 570.41 493.23 77.18
4 152.90 151.49 0.00 570.80 493.23 77.57
5 158.80 157.37 0.00 570.89 493.45 77.45
6 165.00 163.62 0.00 570.90 493.67 77.23
7 168.70 167.32 0.00 570.76 493.90 76.86
8 154.10 152.67 0.00 570.95 493.13 77.82
9 156.80 155.36 0.00 570.91 493.29 77.63
10 155.10 153.68 0.00 571.00 493.35 77.65
11 154.00 152.59 0.00 571.13 493.28 77.85
12 151.30 149.93 0.00 571.16 493.23 77.93
13 147.90 143.86 2.68 571.28 493.14 78.14
14 159.60 139.58 18.61 571.24 493.56 77.68
15 153.80 132.31 20.04 571.22 493.20 78.01
16 163.00 146.96 14.65 570.88 493.49 77.39
17 151.30 149.89 0.00 571.20 493.19 78.00
18 154.70 151.34 1.93 571.13 493.36 77.77
19 159.30 147.62 10.29 571.05 493.37 77.68
20 162.90 151.29 10.24 570.97 493.61 77.35
21 158.90 156.22 1.27 571.00 493.27 77.73
22 145.20 143.83 0.00 570.96 492.82 78.14
23 146.80 145.36 0.00 571.16 492.84 78.32
24 159.20 146.50 11.33 571.13 493.61 77.53
AVG 155.42 150.22 3.79 570.98 493.31 77.67
MAX 168.70 167.32 20.04 571.28 493.90 78.32
MIN 145.20 132.31 0.00 570.41 492.82 76.86
BUILDING STRONG®