Wanapum Dam
Saturday March 21, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 183.60 | 182.18 | 0.00 | 571.02 | 494.39 | 76.62 |
| 2 | 199.50 | 183.00 | 15.11 | 570.92 | 495.10 | 75.82 |
| 3 | 196.80 | 183.87 | 11.55 | 571.09 | 494.62 | 76.46 |
| 4 | 173.70 | 172.28 | 0.00 | 570.86 | 494.06 | 76.80 |
| 5 | 162.40 | 161.02 | 0.00 | 570.57 | 493.40 | 77.17 |
| 6 | 149.20 | 147.77 | 0.00 | 570.64 | 493.02 | 77.62 |
| 7 | 178.70 | 177.31 | 0.00 | 570.73 | 493.59 | 77.14 |
| 8 | 155.80 | 154.36 | 0.00 | 571.01 | 493.10 | 77.91 |
| 9 | 173.40 | 172.04 | 0.00 | 570.63 | 493.64 | 76.99 |
| 10 | 161.40 | 160.03 | 0.00 | 570.72 | 493.13 | 77.60 |
| 11 | 163.90 | 162.49 | 0.00 | 570.81 | 493.23 | 77.58 |
| 12 | 143.60 | 142.23 | 0.00 | 570.80 | 492.32 | 78.48 |
| 13 | 149.70 | 134.90 | 13.38 | 570.88 | 492.77 | 78.11 |
| 14 | 144.80 | 123.32 | 20.03 | 571.05 | 492.07 | 78.99 |
| 15 | 147.70 | 126.20 | 20.12 | 571.12 | 491.47 | 79.64 |
| 16 | 135.90 | 83.76 | 50.76 | 571.06 | 491.15 | 79.90 |
| 17 | 157.40 | 122.41 | 33.55 | 570.90 | 492.86 | 78.04 |
| 18 | 162.00 | 160.62 | 0.00 | 570.83 | 493.20 | 77.63 |
| 19 | 171.90 | 170.46 | 0.00 | 570.51 | 493.37 | 77.13 |
| 20 | 172.50 | 171.09 | 0.00 | 570.45 | 493.64 | 76.81 |
| 21 | 146.90 | 142.68 | 2.81 | 570.58 | 492.22 | 78.36 |
| 22 | 161.50 | 149.22 | 10.87 | 570.41 | 493.10 | 77.32 |
| 23 | 172.10 | 160.82 | 9.87 | 570.46 | 493.53 | 76.93 |
| 24 | 143.30 | 131.95 | 9.90 | 570.58 | 492.49 | 78.09 |
|
| AVG | 162.82 | 153.17 | 8.25 | 570.78 | 493.14 | 77.63 |
|
| MAX | 199.50 | 183.87 | 50.76 | 571.12 | 495.10 | 79.90 |
| MIN | 135.90 | 83.76 | 0.00 | 570.41 | 491.15 | 75.82 |