John Day Dam
Wednesday April 8, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 170.10 | 159.50 | 9.70 | 265.32 | 160.62 | 104.70 |
| 2 | 168.70 | 158.10 | 9.70 | 265.32 | 161.02 | 104.30 |
| 3 | 184.50 | 173.80 | 9.70 | 265.22 | 161.15 | 104.07 |
| 4 | 196.30 | 185.70 | 9.70 | 265.02 | 161.62 | 103.40 |
| 5 | 206.60 | 196.00 | 9.70 | 265.02 | 161.82 | 103.20 |
| 6 | 212.80 | 202.20 | 9.70 | 265.22 | 162.03 | 103.19 |
| 7 | 198.40 | 187.70 | 9.70 | 265.22 | 162.42 | 102.80 |
| 8 | 193.20 | 182.60 | 9.70 | 265.22 | 162.42 | 102.80 |
| 9 | 184.40 | 172.10 | 9.70 | 265.22 | 161.94 | 103.28 |
| 10 | 164.60 | 154.10 | 9.70 | 265.22 | 161.82 | 103.40 |
| 11 | 149.30 | 136.90 | 9.70 | 265.22 | 161.53 | 103.69 |
| 12 | 146.70 | 136.10 | 9.70 | 265.22 | 161.32 | 103.90 |
| 13 | 148.00 | 137.40 | 9.70 | 265.22 | 160.82 | 104.40 |
| 14 | 149.10 | 136.70 | 9.70 | 265.22 | 160.32 | 104.90 |
| 15 | 146.90 | 136.40 | 9.70 | 265.22 | 160.12 | 105.10 |
| 16 | 145.70 | 135.00 | 9.70 | 265.32 | 159.32 | 106.00 |
| 17 | 145.00 | 134.30 | 9.70 | 265.32 | 159.26 | 106.06 |
| 18 | 172.90 | 162.30 | 9.70 | 265.22 | 160.02 | 105.20 |
| 19 | 190.10 | 177.70 | 9.70 | 265.22 | 160.12 | 105.10 |
| 20 | 188.40 | 177.80 | 9.70 | 265.22 | 160.32 | 104.90 |
| 21 | 191.80 | 179.40 | 9.70 | 265.42 | 160.32 | 105.10 |
| 22 | 190.00 | 179.30 | 9.80 | 265.42 | 160.22 | 105.20 |
| 23 | 195.30 | 182.80 | 9.80 | 265.42 | 160.92 | 104.50 |
| 24 | 191.60 | 180.90 | 9.80 | 265.32 | 161.02 | 104.30 |
|
| AVG | 176.27 | 165.20 | 9.71 | 265.25 | 160.94 | 104.31 |
|
| MAX | 212.80 | 202.20 | 9.80 | 265.42 | 162.42 | 106.06 |
| MIN | 145.00 | 134.30 | 9.70 | 265.02 | 159.26 | 102.80 |