John Day Dam
Saturday May 30, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 180.30 | 59.30 | 120.10 | 265.82 | 160.32 | 105.50 |
| 2 | 182.10 | 59.30 | 120.10 | 265.92 | 160.42 | 105.50 |
| 3 | 180.30 | 59.40 | 120.00 | 266.02 | 160.52 | 105.50 |
| 4 | 179.60 | 58.70 | 120.00 | 266.12 | 160.42 | 105.70 |
| 5 | 179.60 | 58.70 | 120.00 | 266.12 | 160.53 | 105.59 |
| 6 | 182.00 | 59.30 | 120.00 | 266.12 | 160.52 | 105.60 |
| 7 | 182.90 | 58.10 | 122.10 | 266.02 | 160.72 | 105.30 |
| 8 | 202.50 | 57.20 | 144.40 | 266.02 | 161.32 | 104.70 |
| 9 | 208.10 | 58.90 | 146.50 | 266.02 | 162.09 | 103.93 |
| 10 | 230.50 | 59.60 | 170.10 | 266.02 | 162.02 | 104.00 |
| 11 | 231.20 | 60.10 | 170.10 | 266.02 | 162.12 | 103.90 |
| 12 | 230.60 | 59.60 | 170.10 | 266.02 | 162.42 | 103.60 |
| 13 | 230.30 | 59.20 | 170.10 | 266.02 | 162.32 | 103.70 |
| 14 | 230.40 | 59.30 | 170.10 | 266.02 | 162.22 | 103.80 |
| 15 | 230.00 | 59.10 | 170.10 | 265.92 | 162.32 | 103.60 |
| 16 | 225.90 | 59.80 | 165.20 | 265.92 | 162.01 | 103.91 |
| 17 | 223.50 | 59.10 | 163.50 | 265.82 | 162.12 | 103.70 |
| 18 | 232.50 | 59.80 | 170.00 | 265.72 | 161.72 | 104.00 |
| 19 | 231.70 | 60.80 | 170.00 | 265.72 | 161.72 | 104.00 |
| 20 | 230.70 | 59.90 | 170.00 | 265.62 | 161.62 | 104.00 |
| 21 | 230.40 | 59.50 | 170.00 | 265.62 | 161.82 | 103.80 |
| 22 | 230.70 | 59.80 | 170.00 | 265.62 | 161.72 | 103.90 |
| 23 | 233.30 | 60.60 | 170.00 | 265.62 | 161.72 | 103.90 |
| 24 | 229.80 | 59.80 | 169.10 | 265.72 | 161.62 | 104.10 |
|
| AVG | 213.70 | 59.37 | 152.98 | 265.90 | 161.51 | 104.38 |
|
| MAX | 233.30 | 60.80 | 170.10 | 266.12 | 162.42 | 105.70 |
| MIN | 179.60 | 57.20 | 120.00 | 265.62 | 160.32 | 103.60 |