Wanapum Dam
Sunday April 12, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 136.80 | 116.34 | 18.45 | 568.24 | 491.21 | 77.04 |
| 2 | 143.10 | 122.54 | 18.61 | 568.34 | 491.46 | 76.88 |
| 3 | 146.30 | 125.57 | 18.72 | 568.61 | 491.56 | 77.04 |
| 4 | 136.90 | 115.99 | 18.93 | 568.98 | 491.13 | 77.85 |
| 5 | 135.70 | 114.60 | 19.14 | 569.22 | 491.10 | 78.12 |
| 6 | 143.50 | 122.24 | 19.28 | 569.40 | 491.56 | 77.85 |
| 7 | 148.70 | 127.30 | 19.44 | 569.64 | 491.76 | 77.87 |
| 8 | 166.70 | 145.16 | 19.52 | 569.68 | 492.49 | 77.19 |
| 9 | 156.40 | 134.76 | 19.63 | 569.88 | 492.32 | 77.57 |
| 10 | 165.70 | 143.94 | 19.71 | 569.98 | 492.83 | 77.14 |
| 11 | 160.90 | 139.11 | 19.78 | 570.09 | 492.50 | 77.58 |
| 12 | 157.40 | 135.57 | 19.86 | 570.26 | 492.65 | 77.61 |
| 13 | 157.80 | 135.83 | 19.96 | 570.34 | 492.71 | 77.63 |
| 14 | 157.10 | 135.08 | 20.03 | 570.46 | 492.65 | 77.81 |
| 15 | 148.80 | 126.62 | 20.16 | 570.66 | 492.22 | 78.44 |
| 16 | 137.50 | 115.25 | 20.20 | 570.63 | 491.50 | 79.13 |
| 17 | 129.50 | 107.33 | 20.14 | 570.46 | 491.53 | 78.93 |
| 18 | 136.80 | 114.84 | 19.99 | 570.19 | 492.09 | 78.09 |
| 19 | | | | | | |
| 20 | 139.30 | 117.63 | 19.62 | 569.54 | 491.94 | 77.60 |
| 21 | 145.00 | 123.69 | 19.27 | 569.03 | 491.99 | 77.04 |
| 22 | 141.00 | 119.88 | 19.07 | 569.01 | 491.73 | 77.28 |
| 23 | 133.90 | 112.66 | 19.21 | 569.12 | 491.31 | 77.81 |
| 24 | 110.30 | 89.12 | 19.14 | 569.05 | 490.47 | 78.58 |
|
| AVG | 145.00 | 123.52 | 19.47 | 569.60 | 491.86 | 77.74 |
|
| MAX | 166.70 | 145.16 | 20.20 | 570.66 | 492.83 | 79.13 |
| MIN | 110.30 | 89.12 | 18.45 | 568.24 | 490.47 | 76.88 |