Wanapum Dam
Thursday June 18, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 126.60 | 107.11 | 17.52 | 566.96 | 490.41 | 76.56 |
| 2 | 121.90 | 102.07 | 17.82 | 567.35 | 490.37 | 76.98 |
| 3 | 125.80 | 105.86 | 17.99 | 567.50 | 490.71 | 76.80 |
| 4 | 127.80 | 107.68 | 18.11 | 567.73 | 490.68 | 77.04 |
| 5 | 130.40 | 110.09 | 18.29 | 568.00 | 490.96 | 77.04 |
| 6 | 141.90 | 121.52 | 18.36 | 567.86 | 491.62 | 76.24 |
| 7 | 151.20 | 130.92 | 18.32 | 568.01 | 491.80 | 76.22 |
| 8 | 138.90 | 118.41 | 18.45 | 568.05 | 491.60 | 76.46 |
| 9 | 152.20 | 131.72 | 18.51 | 568.22 | 492.07 | 76.15 |
| 10 | 152.00 | 131.68 | 18.36 | 567.46 | 492.22 | 75.24 |
| 11 | 145.10 | 125.25 | 17.84 | 566.84 | 492.07 | 74.76 |
| 12 | 149.70 | 130.21 | 17.51 | 566.63 | 492.00 | 74.63 |
| 13 | 126.90 | 107.49 | 17.39 | 566.22 | 491.25 | 74.97 |
| 14 | 144.20 | 125.10 | 17.09 | 566.17 | 491.38 | 74.80 |
| 15 | 133.50 | 114.27 | 17.20 | 566.29 | 491.43 | 74.86 |
| 16 | 131.70 | 112.66 | 17.09 | 565.79 | 491.14 | 74.66 |
| 17 | 138.60 | 119.83 | 16.75 | 565.59 | 490.96 | 74.63 |
| 18 | 126.80 | 108.08 | 16.70 | 565.54 | 491.10 | 74.44 |
| 19 | 142.30 | 123.55 | 16.73 | 565.60 | 491.81 | 73.80 |
| 20 | 142.10 | 123.42 | 16.71 | 565.53 | 491.36 | 74.17 |
| 21 | 135.00 | 116.28 | 16.72 | 565.63 | 490.99 | 74.64 |
| 22 | 134.80 | 115.93 | 16.82 | 565.77 | 491.12 | 74.65 |
| 23 | 143.60 | 124.59 | 16.97 | 566.20 | 491.64 | 74.56 |
| 24 | 145.10 | 125.86 | 17.22 | 566.34 | 491.68 | 74.66 |
|
| AVG | 137.84 | 118.32 | 17.52 | 566.72 | 491.35 | 75.37 |
|
| MAX | 152.20 | 131.72 | 18.51 | 568.22 | 492.22 | 77.04 |
| MIN | 121.90 | 102.07 | 16.70 | 565.53 | 490.37 | 73.80 |