John Day & Lake Umatilla
February 2026
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet |
| 1 | | | | 159.70 | 172.80 | 171.80 | 0.00 | 264.52 | 264.75 | 161.91 | 102.84 |
| 2 | | | | 161.80 | 167.00 | 166.10 | 0.00 | 264.32 | 264.42 | 161.45 | 102.97 |
| 3 | | | | 158.10 | 163.30 | 162.50 | 0.00 | 264.12 | 264.22 | 161.47 | 102.75 |
| 4 | | | | 164.90 | 162.60 | 161.70 | 0.00 | 264.12 | 264.09 | 161.08 | 103.01 |
| 5 | | | | 176.70 | 171.40 | 170.50 | 0.00 | 264.32 | 264.34 | 161.88 | 102.46 |
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| TOT | | | | | | | | | | | |
| AVG | | | | 164.24 | 167.42 | 166.52 | 0.00 | 264.28 | 264.36 | 161.56 | 102.81 |
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| MAX | | | | 176.70 | 172.80 | 171.80 | 0.00 | 264.52 | 264.75 | 161.91 | 103.01 |
| MIN | | | | 158.10 | 162.60 | 161.70 | 0.00 | 264.12 | 264.09 | 161.08 | 102.46 |