John Day Dam
Tuesday May 19, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 233.90 | 61.30 | 171.70 | 265.32 | 160.52 | 104.80 |
| 2 | 214.70 | 61.80 | 152.00 | 265.32 | 160.72 | 104.60 |
| 3 | 215.10 | 62.30 | 152.00 | 265.32 | 160.82 | 104.50 |
| 4 | 214.50 | 61.70 | 151.90 | 265.32 | 160.62 | 104.70 |
| 5 | 213.70 | 60.90 | 152.00 | 265.32 | 160.62 | 104.70 |
| 6 | 214.90 | 60.20 | 152.00 | 265.32 | 160.72 | 104.60 |
| 7 | 214.30 | 61.50 | 152.00 | 265.32 | 160.72 | 104.60 |
| 8 | 213.60 | 60.80 | 152.00 | 265.32 | 160.62 | 104.70 |
| 9 | 212.00 | 59.20 | 151.90 | 265.22 | 160.32 | 104.90 |
| 10 | 215.40 | 61.00 | 151.70 | 265.22 | 160.53 | 104.69 |
| 11 | 213.00 | 60.30 | 151.70 | 265.22 | 160.62 | 104.60 |
| 12 | 214.00 | 61.30 | 151.70 | 265.22 | 160.62 | 104.60 |
| 13 | 213.40 | 60.80 | 151.70 | 265.22 | 160.62 | 104.60 |
| 14 | 213.80 | 61.20 | 151.70 | 265.22 | 160.92 | 104.30 |
| 15 | 222.40 | 60.70 | 160.90 | 265.22 | 161.32 | 103.90 |
| 16 | 224.60 | 60.00 | 162.00 | 265.22 | 161.42 | 103.80 |
| 17 | 223.40 | 60.50 | 162.00 | 265.22 | 161.72 | 103.50 |
| 18 | 223.70 | 60.90 | 161.90 | 265.22 | 162.12 | 103.10 |
| 19 | 225.20 | 62.30 | 161.90 | 265.12 | 162.32 | 102.80 |
| 20 | 226.50 | 63.70 | 161.80 | 265.12 | 161.68 | 103.44 |
| 21 | 225.40 | 62.60 | 161.80 | 265.12 | 161.42 | 103.70 |
| 22 | 226.50 | 62.00 | 161.80 | 265.12 | 161.12 | 104.00 |
| 23 | 226.30 | 63.50 | 161.90 | 265.22 | 161.12 | 104.10 |
| 24 | 222.60 | 59.40 | 162.30 | 265.32 | 160.62 | 104.70 |
|
| AVG | 219.29 | 61.25 | 156.85 | 265.24 | 160.99 | 104.25 |
|
| MAX | 233.90 | 63.70 | 171.70 | 265.32 | 162.32 | 104.90 |
| MIN | 212.00 | 59.20 | 151.70 | 265.12 | 160.32 | 102.80 |