John Day Dam
Friday September 18, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 61.30 | 58.80 | 1.60 | 265.12 | 160.11 | 105.01 |
| 2 | 60.50 | 58.00 | 1.60 | 265.02 | 160.22 | 104.80 |
| 3 | 63.10 | 58.80 | 1.60 | 265.22 | 160.42 | 104.80 |
| 4 | 61.30 | 58.80 | 1.60 | 265.12 | 160.22 | 104.90 |
| 5 | 60.90 | 58.40 | 1.60 | 265.02 | 160.12 | 104.90 |
| 6 | 61.10 | 58.60 | 1.60 | 265.02 | 160.40 | 104.62 |
| 7 | 60.30 | 57.80 | 1.60 | 265.02 | 160.43 | 104.59 |
| 8 | 64.70 | 62.20 | 1.60 | 265.12 | 160.22 | 104.90 |
| 9 | 64.00 | 61.50 | 1.60 | 265.22 | 160.32 | 104.90 |
| 10 | 64.20 | 61.70 | 1.60 | 265.22 | 160.13 | 105.09 |
| 11 | 64.80 | 62.30 | 1.60 | 265.12 | 160.12 | 105.00 |
| 12 | 64.50 | 62.00 | 1.60 | 265.22 | 160.02 | 105.20 |
| 13 | 66.20 | 61.90 | 1.60 | 265.22 | 160.32 | 104.90 |
| 14 | 64.30 | 61.90 | 1.60 | 265.22 | 160.32 | 104.90 |
| 15 | 64.10 | 61.60 | 1.60 | 265.22 | 160.22 | 105.00 |
| 16 | 64.70 | 62.20 | 1.60 | 265.12 | 160.40 | 104.72 |
| 17 | 75.40 | 72.90 | 1.60 | 265.12 | 160.32 | 104.80 |
| 18 | 76.10 | 73.70 | 1.60 | 265.12 | 160.52 | 104.60 |
| 19 | 75.20 | 72.70 | 1.60 | 265.12 | 160.62 | 104.50 |
| 20 | 75.50 | 73.00 | 1.60 | 265.22 | 160.62 | 104.60 |
| 21 | 75.30 | 72.80 | 1.60 | 265.22 | 160.82 | 104.40 |
| 22 | 77.90 | 73.60 | 1.60 | 265.22 | 160.62 | 104.60 |
| 23 | 75.10 | 72.60 | 1.60 | 265.12 | 160.62 | 104.50 |
| 24 | 77.70 | 73.40 | 1.60 | 265.12 | 160.52 | 104.60 |
|
| AVG | 67.42 | 64.63 | 1.60 | 265.15 | 160.36 | 104.78 |
|
| MAX | 77.90 | 73.70 | 1.60 | 265.22 | 160.82 | 105.20 |
| MIN | 60.30 | 57.80 | 1.60 | 265.02 | 160.02 | 104.40 |