US Army Corps of Engineers

Wanapum Dam

Friday May 8, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 132.70 111.53 19.21 569.25 491.47 77.77
2 142.60 121.34 19.30 569.40 491.68 77.72
3 152.50 131.15 19.35 569.28 492.17 77.11
4 149.10 128.07 19.06 568.71 492.00 76.71
5 147.20 126.37 18.83 568.59 491.85 76.75
6 147.50 126.81 18.69 568.22 492.16 76.06
7 135.90 115.11 18.74 568.66 491.43 77.22
8 131.80 110.95 18.85 568.75 490.88 77.86
9 105.60 84.60 18.96 568.85 489.66 79.19
10 100.60 79.55 19.07 569.02 489.85 79.18
11 98.50 77.28 19.20 569.30 488.92 80.38
12 79.40 58.14 19.28 569.27 488.20 81.07
13 76.60 55.28 19.30 569.43 487.74 81.69
14 67.20 45.69 19.49 569.75 487.04 82.70
15 71.40 49.86 19.56 569.62 486.96 82.66
16 72.30 50.79 19.52 569.71 486.92 82.79
17 80.60 59.03 19.54 569.62 487.23 82.39
18 103.50 82.05 19.40 569.04 490.05 79.00
19 164.90 144.09 18.82 568.55 492.18 76.38
20 166.10 145.11 19.01 569.14 492.23 76.91
21 173.10 151.98 19.07 568.79 492.67 76.12
22 158.90 137.90 18.97 568.90 492.34 76.56
23 157.10 135.90 19.23 569.44 491.97 77.48
24 134.80 113.45 19.35 569.40 490.86 78.54
AVG 122.91 101.75 19.16 569.11 490.35 78.76
MAX 173.10 151.98 19.56 569.75 492.67 82.79
MIN 67.20 45.69 18.69 568.22 486.92 76.06