John Day Dam
Wednesday September 16, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 60.40 | 57.90 | 1.60 | 264.92 | 159.52 | 105.40 |
| 2 | 60.70 | 58.20 | 1.60 | 265.02 | 159.72 | 105.30 |
| 3 | 60.50 | 58.00 | 1.60 | 265.02 | 159.52 | 105.50 |
| 4 | 60.00 | 57.50 | 1.60 | 265.12 | 159.52 | 105.60 |
| 5 | 61.80 | 59.30 | 1.60 | 265.12 | 159.72 | 105.40 |
| 6 | 75.70 | 73.20 | 1.60 | 265.02 | 159.75 | 105.27 |
| 7 | 76.40 | 73.90 | 1.60 | 265.12 | 159.92 | 105.20 |
| 8 | 75.50 | 73.00 | 1.60 | 265.32 | 159.81 | 105.51 |
| 9 | 74.50 | 72.00 | 1.60 | 265.32 | 159.72 | 105.60 |
| 10 | 63.00 | 58.70 | 1.60 | 265.32 | 159.55 | 105.77 |
| 11 | 59.10 | 56.60 | 1.60 | 265.22 | 159.72 | 105.50 |
| 12 | 59.10 | 56.60 | 1.60 | 265.22 | 159.67 | 105.55 |
| 13 | 59.40 | 56.90 | 1.60 | 265.22 | 159.82 | 105.40 |
| 14 | 61.00 | 56.70 | 1.60 | 265.22 | 159.72 | 105.50 |
| 15 | 59.20 | 56.70 | 1.60 | 265.22 | 159.72 | 105.50 |
| 16 | 62.50 | 58.20 | 1.60 | 265.22 | 159.72 | 105.50 |
| 17 | 75.30 | 72.80 | 1.60 | 265.02 | 160.02 | 105.00 |
| 18 | 78.50 | 74.20 | 1.60 | 265.02 | 160.02 | 105.00 |
| 19 | 77.10 | 74.60 | 1.60 | 265.02 | 159.92 | 105.10 |
| 20 | 76.00 | 73.50 | 1.60 | 265.12 | 160.13 | 104.99 |
| 21 | 75.20 | 72.70 | 1.60 | 265.12 | 160.22 | 104.90 |
| 22 | 75.10 | 72.60 | 1.60 | 265.02 | 159.82 | 105.20 |
| 23 | 75.70 | 73.20 | 1.60 | 264.92 | 159.92 | 105.00 |
| 24 | 62.30 | 59.80 | 1.60 | 264.92 | 160.02 | 104.90 |
|
| AVG | 67.67 | 64.87 | 1.60 | 265.12 | 159.80 | 105.32 |
|
| MAX | 78.50 | 74.60 | 1.60 | 265.32 | 160.22 | 105.77 |
| MIN | 59.10 | 56.60 | 1.60 | 264.92 | 159.52 | 104.90 |