US Army Corps of Engineers

Wanapum Dam

Saturday December 20, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 110.00 108.64 0.00 568.09 490.71 77.39
2 110.50 109.15 0.00 568.13 490.62 77.51
3 101.20 99.78 0.00 568.51 490.15 78.36
4 92.60 91.17 0.00 569.01 489.73 79.28
5 100.50 99.14 0.00 569.04 490.32 78.72
6 100.60 99.21 0.00 569.41 490.40 79.01
7 117.60 116.21 0.00 569.63 491.24 78.39
8 104.10 102.68 0.00 569.89 490.35 79.55
9 119.10 117.70 0.00 569.87 491.25 78.62
10 119.70 118.31 0.00 570.16 491.34 78.82
11 118.20 116.83 0.00 570.30 491.17 79.13
12 115.10 113.72 0.00 570.27 491.09 79.18
13 118.70 117.27 0.00 570.35 491.25 79.09
14 101.20 99.82 0.00 570.43 490.52 79.91
15 119.60 118.19 0.00 569.92 491.78 78.15
16 156.60 155.21 0.00 569.77 493.13 76.64
17 153.70 152.34 0.00 569.84 492.83 77.01
18 155.80 154.44 0.00 569.60 492.95 76.65
19 153.60 152.17 0.00 569.65 492.80 76.85
20 155.00 153.64 0.00 569.62 492.95 76.68
21 145.90 144.46 0.00 569.59 492.55 77.04
22 145.80 144.36 0.00 569.67 492.55 77.12
23 155.80 154.41 0.00 569.74 492.79 76.95
24 152.60 151.25 0.00 569.87 492.70 77.17
AVG 125.98 124.59 0.00 569.60 491.55 78.05
MAX 156.60 155.21 0.00 570.43 493.13 79.91
MIN 92.60 91.17 0.00 568.09 489.73 76.64
BUILDING STRONG®