The Dalles Dam
Sunday May 31, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 211.80 | 127.20 | 78.80 | 159.40 | 78.63 | 80.77 |
| 2 | 210.40 | 125.60 | 79.00 | 159.35 | 78.54 | 80.81 |
| 3 | 210.30 | 125.50 | 79.00 | 159.28 | 78.53 | 80.75 |
| 4 | 210.40 | 125.60 | 79.00 | 159.31 | 78.61 | 80.70 |
| 5 | 219.30 | 134.50 | 79.00 | 159.35 | 78.91 | 80.44 |
| 6 | 220.20 | 135.40 | 79.00 | 159.43 | 78.95 | 80.48 |
| 7 | 220.50 | 135.70 | 79.00 | 159.41 | 79.02 | 80.39 |
| 8 | 220.50 | 135.70 | 79.00 | 159.46 | 78.96 | 80.50 |
| 9 | 221.40 | 136.60 | 79.00 | 159.45 | 79.07 | 80.38 |
| 10 | 221.30 | 136.50 | 79.00 | 159.51 | 79.07 | 80.44 |
| 11 | 222.40 | 137.60 | 79.00 | 159.50 | 79.12 | 80.38 |
| 12 | 222.30 | 137.50 | 79.00 | 159.53 | 79.07 | 80.46 |
| 13 | 221.20 | 136.40 | 79.00 | 159.53 | 79.01 | 80.52 |
| 14 | 221.80 | 137.00 | 79.00 | 159.55 | 79.12 | 80.43 |
| 15 | 221.50 | 136.70 | 79.00 | 159.60 | 79.15 | 80.45 |
| 16 | 222.10 | 137.30 | 79.00 | 159.55 | 79.17 | 80.38 |
| 17 | 222.10 | 137.30 | 79.00 | 159.56 | 79.25 | 80.31 |
| 18 | 222.10 | 137.30 | 79.00 | 159.54 | 79.40 | 80.14 |
| 19 | 251.90 | 167.10 | 79.00 | 159.13 | 80.19 | 78.94 |
| 20 | 253.70 | 168.90 | 79.00 | 158.85 | 80.31 | 78.54 |
| 21 | 253.80 | 169.00 | 79.00 | 158.58 | 80.30 | 78.28 |
| 22 | 249.00 | 164.20 | 79.00 | 158.36 | 80.03 | 78.33 |
| 23 | 238.60 | 153.80 | 79.00 | 158.24 | 79.66 | 78.58 |
| 24 | 216.50 | 131.70 | 79.00 | 158.26 | 79.03 | 79.23 |
|
| AVG | 225.21 | 140.42 | 78.99 | 159.24 | 79.21 | 80.03 |
|
| MAX | 253.80 | 169.00 | 79.00 | 159.60 | 80.31 | 80.81 |
| MIN | 210.30 | 125.50 | 78.80 | 158.24 | 78.53 | 78.28 |