US Army Corps of Engineers

Wanapum Dam

Tuesday January 27, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 170.70 169.28 0.00 568.96 493.94 75.01
2 169.40 167.99 0.00 568.82 493.94 74.88
3 176.20 174.82 0.00 568.66 493.96 74.70
4 169.20 167.85 0.00 568.56 493.80 74.76
5 171.90 170.45 0.00 568.46 494.06 74.40
6 173.10 171.71 0.00 568.35 494.03 74.32
7 177.80 176.37 0.00 568.35 494.02 74.33
8 163.60 162.16 0.00 568.53 493.56 74.97
9 162.90 161.50 0.00 568.94 493.50 75.44
10 162.90 161.48 0.00 569.18 493.35 75.83
11 164.30 162.93 0.00 568.72 493.62 75.10
12 165.80 164.39 0.00 568.29 493.51 74.79
13 132.60 131.19 0.00 568.58 492.19 76.40
14 126.10 124.75 0.00 568.64 491.93 76.71
15 117.40 116.04 0.00 568.72 491.18 77.54
16 120.10 118.65 0.00 568.93 491.65 77.28
17 166.80 165.43 0.00 568.39 493.41 74.99
18 172.30 170.91 0.00 568.74 493.61 75.13
19 175.00 173.64 0.00 568.63 493.70 74.94
20 161.20 159.81 0.00 568.46 493.28 75.18
21 159.90 158.51 0.00 568.71 493.25 75.46
22 164.10 162.72 0.00 568.62 493.56 75.06
23 140.60 139.15 0.00 568.67 492.71 75.96
24 130.80 129.35 0.00 568.84 492.14 76.70
AVG 158.11 156.71 0.00 568.66 493.25 75.41
MAX 177.80 176.37 0.00 569.18 494.06 77.54
MIN 117.40 116.04 0.00 568.29 491.18 74.32