Rocky Reach Dam & Lake
August 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 | | | | 87.65 | 91.35 | 87.06 | 3.98 | 705.27 | 705.81 | 615.69 | 90.12 |
| 2 | | | | 80.00 | 83.05 | 81.80 | 0.95 | 704.77 | 706.05 | 615.32 | 90.73 |
| 3 | | | | 97.48 | 96.30 | 95.30 | 0.68 | 704.80 | 705.81 | 616.19 | 89.62 |
| 4 | | | | 83.02 | 77.84 | 77.52 | 0.00 | 706.19 | 705.87 | 615.04 | 90.83 |
| 5 | | | | 97.16 | 97.26 | 96.92 | 0.00 | 705.94 | 705.96 | 616.19 | 89.77 |
| 6 | | | | 87.25 | 85.35 | 85.01 | 0.00 | 706.54 | 706.12 | 615.53 | 90.59 |
| 7 | | | | | | | | | | | |
| 8 | | | | | | | | | | | |
| 9 | | | | | | | | | | | |
| 10 | | | | | | | | | | | |
| 11 | | | | | | | | | | | |
| 12 | | | | | | | | | | | |
| 13 | | | | | | | | | | | |
| 14 | | | | | | | | | | | |
| 15 | | | | | | | | | | | |
| 16 | | | | | | | | | | | |
| 17 | | | | | | | | | | | |
| 18 | | | | | | | | | | | |
| 19 | | | | | | | | | | | |
| 20 | | | | | | | | | | | |
| 21 | | | | | | | | | | | |
| 22 | | | | | | | | | | | |
| 23 | | | | | | | | | | | |
| 24 | | | | | | | | | | | |
| 25 | | | | | | | | | | | |
| 26 | | | | | | | | | | | |
| 27 | | | | | | | | | | | |
| 28 | | | | | | | | | | | |
| 29 | | | | | | | | | | | |
| 30 | | | | | | | | | | | |
| 31 | | | | | | | | | | | |
|
| TOT | | | | | | | | | | | |
| AVG | | | | 88.76 | 88.52 | 87.27 | 0.93 | 705.59 | 705.94 | 615.66 | 90.28 |
|
| MAX | | | | 97.48 | 97.26 | 96.92 | 3.98 | 706.54 | 706.12 | 616.19 | 90.83 |
| MIN | | | | 80.00 | 77.84 | 77.52 | 0.00 | 704.77 | 705.81 | 615.04 | 89.62 |