The Dalles Dam
Sunday August 23, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 101.10 | 53.30 | 42.00 | 159.18 | 77.11 | 82.07 |
| 2 | 102.70 | 54.90 | 42.00 | 159.03 | 77.14 | 81.89 |
| 3 | 100.80 | 55.10 | 39.90 | 159.04 | 77.08 | 81.96 |
| 4 | 92.20 | 56.40 | 30.00 | 158.90 | 76.90 | 82.00 |
| 5 | 92.80 | 57.00 | 30.00 | 158.91 | 76.89 | 82.02 |
| 6 | 89.70 | 53.90 | 30.00 | 158.94 | 76.84 | 82.10 |
| 7 | 88.60 | 52.80 | 30.00 | 158.89 | 76.81 | 82.08 |
| 8 | 88.20 | 52.40 | 30.00 | 158.91 | 76.74 | 82.17 |
| 9 | 88.00 | 52.20 | 30.00 | 159.01 | 76.64 | 82.37 |
| 10 | 88.10 | 52.30 | 30.00 | 158.97 | 76.60 | 82.37 |
| 11 | 88.30 | 52.50 | 30.00 | 158.98 | 76.64 | 82.34 |
| 12 | 87.60 | 51.80 | 30.00 | 159.03 | 76.55 | 82.48 |
| 13 | 88.10 | 52.30 | 30.00 | 159.09 | 76.60 | 82.49 |
| 14 | 88.20 | 52.40 | 30.00 | 159.07 | 76.50 | 82.57 |
| 15 | 88.20 | 52.40 | 30.00 | 159.12 | 76.50 | 82.62 |
| 16 | 88.00 | 52.20 | 30.00 | 159.17 | 76.36 | 82.81 |
| 17 | 87.30 | 51.50 | 30.00 | 159.20 | 76.28 | 82.92 |
| 18 | 87.90 | 52.10 | 30.00 | 159.23 | 76.28 | 82.95 |
| 19 | 87.80 | 52.00 | 30.00 | 159.25 | 76.28 | 82.97 |
| 20 | 87.00 | 51.20 | 30.00 | 159.36 | 76.12 | 83.24 |
| 21 | 87.30 | 51.50 | 30.00 | 159.44 | 76.17 | 83.27 |
| 22 | 87.00 | 51.20 | 30.00 | 159.89 | 76.08 | 83.81 |
| 23 | 94.80 | 53.20 | 35.90 | 159.95 | 76.29 | 83.66 |
| 24 | 96.00 | 54.20 | 36.00 | 159.79 | 76.21 | 83.58 |
|
| AVG | 90.65 | 52.95 | 31.91 | 159.18 | 76.57 | 82.61 |
|
| MAX | 102.70 | 57.00 | 42.00 | 159.95 | 77.14 | 83.81 |
| MIN | 87.00 | 51.20 | 30.00 | 158.89 | 76.08 | 81.89 |