Priest Rapids Dam & Reservoir
March 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 | 18144 | 756 | 38 | 142.40 | 139.80 | 139.30 | 0.00 | 487.07 | 486.40 | 412.40 | 74.00 |
| 2 | 17273 | 720 | 39 | 126.50 | 131.20 | 130.70 | 0.00 | 485.78 | 486.25 | 411.75 | 74.50 |
| 3 | 16909 | 705 | 39 | 131.40 | 130.90 | 129.00 | 1.00 | 485.92 | 485.83 | 411.67 | 74.16 |
| 4 | 15112 | 630 | 38 | 115.60 | 114.70 | 113.60 | 0.00 | 486.18 | 485.10 | 410.34 | 74.76 |
| 5 | 15026 | 626 | 38 | 117.10 | 114.40 | 113.30 | 0.00 | 486.91 | 484.82 | 410.30 | 74.52 |
| 6 | 16215 | 676 | 38 | 133.70 | 131.30 | 121.50 | 8.60 | 487.53 | 486.84 | 411.64 | 75.20 |
| 7 | 14957 | 623 | 38 | 141.70 | 145.90 | 113.90 | 30.80 | 486.38 | 486.66 | 412.47 | 74.19 |
| 8 | | | | | | | | 485.68 | | | |
| 9 | | | | | | | | 485.82 | | | |
| 10 | | | | | | | | 485.47 | | | |
| 11 | | | | | | | | 487.01 | | | |
| 12 | | | | | | | | 485.68 | | | |
| 13 | | | | | | | | 485.70 | | | |
| 14 | | | | | | | | 486.19 | | | |
| 15 | | | | | | | | 485.23 | | | |
| 16 | | | | | | | | 487.25 | | | |
| 17 | | | | | | | | 487.24 | | | |
| 18 | | | | | | | | 486.65 | | | |
| 19 | | | | | | | | 486.58 | | | |
| 20 | | | | | | | | 487.50 | | | |
| 21 | | | | | | | | 486.49 | | | |
| 22 | | | | | | | | 485.73 | | | |
| 23 | | | | | | | | 485.81 | | | |
| 24 | | | | | | | | 485.27 | | | |
| 25 | | | | | | | | 485.77 | | | |
| 26 | | | | | | | | 485.99 | | | |
| 27 | | | | | | | | 487.11 | | | |
| 28 | | | | | | | | 486.57 | | | |
| 29 | | | | | | | | 484.44 | | | |
| 30 | | | | | | | | 487.12 | | | |
| 31 | | | | | | | | 487.12 | | | |
|
| TOT | 113636 | | 268 | | | | | | | | |
| AVG | 16234 | 676 | 38 | 129.77 | 129.74 | 123.04 | 5.77 | 486.30 | 485.99 | 411.51 | 74.48 |
|
| MAX | 18144 | | | 142.40 | 145.90 | 139.30 | 30.80 | 487.53 | 486.84 | 412.47 | 75.20 |
| MIN | 14957 | | | 115.60 | 114.40 | 113.30 | 0.00 | 484.44 | 484.82 | 410.30 | 74.00 |