Priest Rapids Dam
Friday September 18, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 40.10 | 37.35 | 2.19 | 485.24 | 402.32 | 82.93 |
| 2 | 39.40 | 36.77 | 2.15 | 485.11 | 402.24 | 82.87 |
| 3 | 39.40 | 36.82 | 2.11 | 484.98 | 402.20 | 82.77 |
| 4 | 39.10 | 36.47 | 2.08 | 484.99 | 402.21 | 82.78 |
| 5 | 39.10 | 36.49 | 2.08 | 484.94 | 402.18 | 82.76 |
| 6 | 39.50 | 36.89 | 2.05 | 484.88 | 402.41 | 82.47 |
| 7 | 54.50 | 51.78 | 2.03 | 484.90 | 403.99 | 80.91 |
| 8 | 45.10 | 42.35 | 2.13 | 485.27 | 402.84 | 82.43 |
| 9 | 45.40 | 42.59 | 2.17 | 485.21 | 402.94 | 82.27 |
| 10 | 43.70 | 40.90 | 2.18 | 485.26 | 402.76 | 82.51 |
| 11 | 44.20 | 41.40 | 2.20 | 485.27 | 402.89 | 82.38 |
| 12 | 44.60 | 41.78 | 2.20 | 485.26 | 402.92 | 82.34 |
| 13 | 49.70 | 46.87 | 2.20 | 485.20 | 403.86 | 81.34 |
| 14 | 52.40 | 49.49 | 2.17 | 485.15 | 403.61 | 81.54 |
| 15 | 51.90 | 49.04 | 2.16 | 485.14 | 403.61 | 81.53 |
| 16 | 54.80 | 51.91 | 2.18 | 485.21 | 404.17 | 81.04 |
| 17 | 72.10 | 69.14 | 2.17 | 485.11 | 406.66 | 78.44 |
| 18 | 87.90 | 85.02 | 2.13 | 485.03 | 407.85 | 77.18 |
| 19 | 93.80 | 90.82 | 2.10 | 485.00 | 407.10 | 77.90 |
| 20 | 76.60 | 73.76 | 2.12 | 485.08 | 406.26 | 78.81 |
| 21 | 78.60 | 75.71 | 2.10 | 485.02 | 406.42 | 78.60 |
| 22 | 71.80 | 68.97 | 2.15 | 485.21 | 405.63 | 79.58 |
| 23 | 46.30 | 43.51 | 2.22 | 485.46 | 402.76 | 82.70 |
| 24 | 42.00 | 39.15 | 2.23 | 485.36 | 402.51 | 82.85 |
|
| AVG | 53.83 | 51.04 | 2.15 | 485.14 | 403.85 | 81.29 |
|
| MAX | 93.80 | 90.82 | 2.23 | 485.46 | 407.85 | 82.93 |
| MIN | 39.10 | 36.47 | 2.03 | 484.88 | 402.18 | 77.18 |