Wanapum Dam
Wednesday April 8, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 98.70 | 96.69 | 0.00 | 569.70 | 489.68 | 80.02 |
| 2 | 97.50 | 95.52 | 0.00 | 569.89 | 489.46 | 80.43 |
| 3 | 95.00 | 93.04 | 0.00 | 569.79 | 489.38 | 80.42 |
| 4 | 97.20 | 95.21 | 0.00 | 570.08 | 489.39 | 80.69 |
| 5 | 93.60 | 91.57 | 0.00 | 570.22 | 489.13 | 81.09 |
| 6 | 95.40 | 93.44 | 0.00 | 570.34 | 489.12 | 81.22 |
| 7 | 101.90 | 99.88 | 0.00 | 570.83 | 489.48 | 81.35 |
| 8 | 117.90 | 114.02 | 1.89 | 570.82 | 491.21 | 79.62 |
| 9 | 145.10 | 122.81 | 20.34 | 570.98 | 491.25 | 79.73 |
| 10 | 132.50 | 110.08 | 20.44 | 571.05 | 490.90 | 80.15 |
| 11 | 141.30 | 118.87 | 20.42 | 570.84 | 491.37 | 79.48 |
| 12 | 137.70 | 115.34 | 20.37 | 570.93 | 491.21 | 79.72 |
| 13 | 134.40 | 112.00 | 20.36 | 570.72 | 491.27 | 79.45 |
| 14 | 132.90 | 109.89 | 20.97 | 570.72 | 491.19 | 79.53 |
| 15 | 127.60 | 105.41 | 20.23 | 570.62 | 490.99 | 79.63 |
| 16 | 123.80 | 101.78 | 19.97 | 569.94 | 490.89 | 79.05 |
| 17 | 120.30 | 98.61 | 19.67 | 569.77 | 490.76 | 79.01 |
| 18 | 121.70 | 100.14 | 19.54 | 569.49 | 491.08 | 78.42 |
| 19 | 129.50 | 108.32 | 19.17 | 568.85 | 491.16 | 77.69 |
| 20 | 124.50 | 103.51 | 19.01 | 568.68 | 491.00 | 77.68 |
| 21 | 138.20 | 117.07 | 19.10 | 569.23 | 491.63 | 77.60 |
| 22 | 134.60 | 113.41 | 19.17 | 569.12 | 491.34 | 77.78 |
| 23 | 131.60 | 110.36 | 19.20 | 569.17 | 491.32 | 77.85 |
| 24 | 130.90 | 109.75 | 19.18 | 569.11 | 491.30 | 77.80 |
|
| AVG | 120.99 | 105.70 | 13.29 | 570.04 | 490.65 | 79.39 |
|
| MAX | 145.10 | 122.81 | 20.97 | 571.05 | 491.63 | 81.35 |
| MIN | 93.60 | 91.57 | 0.00 | 568.68 | 489.12 | 77.60 |