Wanapum Dam
Wednesday June 17, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 149.30 | 117.33 | 30.01 | 571.06 | 492.49 | 78.57 |
| 2 | 163.60 | 131.75 | 29.86 | 570.76 | 493.37 | 77.39 |
| 3 | 160.10 | 135.89 | 22.20 | 570.80 | 492.59 | 78.20 |
| 4 | 153.70 | 131.38 | 20.28 | 570.67 | 492.59 | 78.08 |
| 5 | 149.90 | 127.69 | 20.18 | 570.51 | 492.41 | 78.10 |
| 6 | 156.20 | 134.11 | 20.10 | 570.47 | 492.69 | 77.78 |
| 7 | 152.00 | 129.90 | 20.09 | 570.43 | 492.42 | 78.01 |
| 8 | 146.90 | 124.88 | 20.03 | 570.27 | 492.13 | 78.14 |
| 9 | 154.20 | 132.27 | 19.89 | 570.13 | 492.60 | 77.53 |
| 10 | 162.20 | 140.38 | 19.77 | 569.90 | 492.85 | 77.05 |
| 11 | 162.50 | 140.85 | 19.62 | 569.66 | 492.92 | 76.74 |
| 12 | 164.00 | 142.57 | 19.40 | 569.35 | 492.94 | 76.40 |
| 13 | 157.10 | 135.90 | 19.21 | 568.96 | 492.63 | 76.32 |
| 14 | 154.00 | 133.20 | 18.82 | 568.24 | 492.39 | 75.84 |
| 15 | 150.20 | 129.77 | 18.43 | 567.83 | 492.43 | 75.40 |
| 16 | 154.10 | 133.85 | 18.22 | 567.62 | 492.33 | 75.29 |
| 17 | 140.00 | 119.92 | 18.04 | 567.28 | 491.55 | 75.73 |
| 18 | 140.30 | 120.50 | 17.84 | 567.06 | 491.92 | 75.13 |
| 19 | 155.00 | 135.37 | 17.62 | 566.79 | 492.29 | 74.50 |
| 20 | 159.10 | 139.61 | 17.50 | 566.55 | 492.39 | 74.16 |
| 21 | 150.50 | 131.13 | 17.35 | 566.44 | 491.90 | 74.54 |
| 22 | 148.90 | 129.63 | 17.29 | 566.47 | 491.80 | 74.67 |
| 23 | 153.00 | 133.62 | 17.39 | 566.52 | 492.07 | 74.45 |
| 24 | 142.50 | 123.09 | 17.41 | 566.59 | 491.34 | 75.25 |
|
| AVG | 153.30 | 131.44 | 19.86 | 568.76 | 492.38 | 76.39 |
|
| MAX | 164.00 | 142.57 | 30.01 | 571.06 | 493.37 | 78.57 |
| MIN | 140.00 | 117.33 | 17.29 | 566.44 | 491.34 | 74.16 |