John Day Dam
Sunday April 12, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 209.30 | 61.40 | 147.00 | 265.32 | 160.72 | 104.60 |
| 2 | 210.00 | 62.10 | 147.00 | 265.32 | 161.12 | 104.20 |
| 3 | 211.00 | 61.30 | 147.00 | 265.32 | 161.22 | 104.10 |
| 4 | 207.80 | 59.90 | 147.00 | 265.32 | 161.42 | 103.90 |
| 5 | 209.60 | 59.90 | 147.00 | 265.32 | 161.52 | 103.80 |
| 6 | 207.30 | 59.20 | 147.10 | 265.32 | 161.88 | 103.44 |
| 7 | 217.90 | 60.30 | 156.80 | 265.32 | 161.72 | 103.60 |
| 8 | 218.30 | 60.40 | 157.00 | 265.22 | 161.62 | 103.60 |
| 9 | 218.50 | 60.90 | 156.70 | 265.22 | 161.29 | 103.93 |
| 10 | 218.40 | 60.70 | 156.70 | 265.22 | 161.12 | 104.10 |
| 11 | 218.10 | 60.50 | 156.70 | 265.22 | 161.22 | 104.00 |
| 12 | 217.60 | 60.00 | 156.70 | 265.22 | 161.12 | 104.10 |
| 13 | 217.90 | 60.30 | 156.70 | 265.22 | 161.02 | 104.20 |
| 14 | 217.70 | 60.10 | 156.70 | 265.22 | 161.22 | 104.00 |
| 15 | 217.50 | 59.90 | 156.70 | 265.22 | 161.22 | 104.00 |
| 16 | 219.00 | 59.60 | 156.70 | 265.22 | 161.42 | 103.80 |
| 17 | 219.70 | 60.30 | 156.70 | 265.12 | 161.12 | 104.00 |
| 18 | 217.40 | 59.80 | 156.70 | 265.02 | 161.12 | 103.90 |
| 19 | 218.00 | 60.40 | 156.70 | 265.02 | 161.22 | 103.80 |
| 20 | 218.50 | 60.90 | 156.70 | 264.92 | 160.92 | 104.00 |
| 21 | 218.40 | 60.90 | 156.70 | 264.92 | 160.82 | 104.10 |
| 22 | 221.90 | 64.30 | 156.70 | 264.92 | 160.77 | 104.15 |
| 23 | 219.60 | 60.20 | 156.70 | 264.92 | 160.92 | 104.00 |
| 24 | 218.70 | 61.20 | 156.70 | 264.92 | 160.82 | 104.10 |
|
| AVG | 216.17 | 60.60 | 154.30 | 265.17 | 161.19 | 103.98 |
|
| MAX | 221.90 | 64.30 | 157.00 | 265.32 | 161.88 | 104.60 |
| MIN | 207.30 | 59.20 | 147.00 | 264.92 | 160.72 | 103.44 |