John Day Dam
Wednesday July 15, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 121.70 | 72.40 | 48.40 | 263.52 | 160.02 | 103.50 |
| 2 | 123.00 | 71.30 | 49.00 | 263.51 | 160.12 | 103.39 |
| 3 | 121.30 | 71.40 | 49.00 | 263.52 | 159.92 | 103.60 |
| 4 | 124.70 | 74.80 | 49.00 | 263.52 | 159.82 | 103.70 |
| 5 | 121.50 | 71.60 | 49.00 | 263.51 | 159.72 | 103.79 |
| 6 | 121.60 | 71.70 | 49.00 | 263.62 | 159.92 | 103.70 |
| 7 | 134.30 | 84.30 | 49.00 | 263.62 | 160.02 | 103.60 |
| 8 | 136.20 | 86.20 | 49.00 | 263.51 | 159.92 | 103.59 |
| 9 | 134.00 | 84.10 | 49.00 | 263.62 | 159.62 | 104.00 |
| 10 | 117.60 | 65.80 | 49.00 | 263.62 | 159.52 | 104.10 |
| 11 | 115.60 | 65.70 | 49.10 | 263.72 | 159.52 | 104.20 |
| 12 | 116.40 | 64.60 | 49.10 | 263.81 | 159.42 | 104.39 |
| 13 | 116.30 | 64.60 | 49.10 | 263.82 | 159.42 | 104.40 |
| 14 | 116.70 | 64.90 | 49.10 | 263.81 | 159.43 | 104.38 |
| 15 | 115.60 | 65.60 | 49.10 | 263.82 | 159.12 | 104.70 |
| 16 | 115.70 | 65.80 | 49.10 | 263.92 | 159.53 | 104.39 |
| 17 | 159.30 | 109.30 | 49.10 | 263.72 | 160.72 | 103.00 |
| 18 | 192.10 | 140.40 | 49.10 | 263.51 | 161.22 | 102.29 |
| 19 | 183.80 | 133.90 | 49.00 | 263.51 | 160.92 | 102.59 |
| 20 | 188.60 | 138.70 | 49.00 | 263.51 | 160.81 | 102.70 |
| 21 | 171.10 | 121.20 | 49.00 | 263.41 | 160.43 | 102.98 |
| 22 | 171.00 | 121.00 | 49.00 | 263.62 | 160.48 | 103.14 |
| 23 | 142.20 | 92.30 | 49.00 | 263.72 | 159.90 | 103.82 |
| 24 | 120.70 | 69.00 | 49.00 | 263.72 | 159.82 | 103.90 |
|
| AVG | 136.71 | 86.28 | 49.01 | 263.63 | 159.97 | 103.66 |
|
| MAX | 192.10 | 140.40 | 49.10 | 263.92 | 161.22 | 104.70 |
| MIN | 115.60 | 64.60 | 48.40 | 263.41 | 159.12 | 102.29 |