US Army Corps of Engineers

Wanapum Dam

Monday March 23, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 157.70 156.34 0.00 569.75 492.85 76.90
2 161.30 159.88 0.00 569.81 492.89 76.91
3 159.80 158.36 0.00 569.85 492.73 77.12
4 153.90 152.52 0.00 570.07 492.08 77.99
5 162.90 161.52 0.00 570.24 492.76 77.48
6 143.20 141.80 0.00 570.38 491.84 78.54
7 140.00 138.62 0.00 570.47 491.66 78.81
8 128.20 126.80 0.00 570.72 490.91 79.81
9 125.70 124.28 0.00 570.97 490.61 80.36
10 130.30 124.47 4.44 571.06 491.04 80.02
11 157.20 133.74 22.07 571.17 492.06 79.10
12 167.10 136.32 29.40 571.26 492.45 78.81
13 173.30 131.54 40.33 571.08 493.03 78.04
14 190.90 143.30 45.82 570.84 493.54 77.30
15 182.80 142.61 38.41 570.93 493.06 77.88
16 170.50 128.71 39.95 570.79 492.78 78.01
17 181.40 136.99 42.63 570.75 493.33 77.42
18 180.80 138.24 40.72 570.82 493.22 77.60
19 179.00 136.46 40.73 570.74 493.04 77.70
20 170.80 128.22 40.74 570.73 492.80 77.93
21 164.60 133.74 29.05 570.76 492.43 78.33
22 163.50 141.46 20.20 570.75 492.73 78.02
23 154.10 142.28 10.05 570.71 492.65 78.06
24 152.70 140.80 10.06 570.80 492.29 78.51
AVG 160.49 139.96 18.94 570.64 492.45 78.20
MAX 190.90 161.52 45.82 571.26 493.54 80.36
MIN 125.70 124.28 0.00 569.75 490.61 76.90