Wanapum Dam
Wednesday September 16, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 36.20 | 32.78 | 1.46 | 568.34 | 486.26 | 82.08 |
| 2 | 30.60 | 27.12 | 1.48 | 568.16 | 486.14 | 82.02 |
| 3 | 30.00 | 26.62 | 1.42 | 567.96 | 486.07 | 81.88 |
| 4 | 31.20 | 27.80 | 1.44 | 568.19 | 486.03 | 82.15 |
| 5 | 33.10 | 29.68 | 1.44 | 568.02 | 486.13 | 81.90 |
| 6 | 36.00 | 32.62 | 1.39 | 567.87 | 486.25 | 81.61 |
| 7 | 57.70 | 54.31 | 1.36 | 567.85 | 487.39 | 80.45 |
| 8 | 68.30 | 64.98 | 1.31 | 567.57 | 487.58 | 79.98 |
| 9 | 51.30 | 47.87 | 1.39 | 568.49 | 486.73 | 81.76 |
| 10 | 44.90 | 41.48 | 1.45 | 567.81 | 486.40 | 81.41 |
| 11 | 29.70 | 26.37 | 1.29 | 567.52 | 485.80 | 81.72 |
| 12 | 30.00 | 26.64 | 1.32 | 568.13 | 486.10 | 82.04 |
| 13 | 33.90 | 30.49 | 1.38 | 567.68 | 486.04 | 81.64 |
| 14 | 27.00 | 23.69 | 1.27 | 567.59 | 485.38 | 82.21 |
| 15 | 37.50 | 34.24 | 1.30 | 567.70 | 486.07 | 81.62 |
| 16 | 42.30 | 39.05 | 1.27 | 567.39 | 486.66 | 80.73 |
| 17 | 65.70 | 62.49 | 1.17 | 567.11 | 487.71 | 79.40 |
| 18 | 91.60 | 88.47 | 1.09 | 566.76 | 489.50 | 77.25 |
| 19 | 117.60 | 114.59 | 0.98 | 566.42 | 490.40 | 76.02 |
| 20 | 103.40 | 100.49 | 0.95 | 566.43 | 489.53 | 76.90 |
| 21 | 96.60 | 93.69 | 0.89 | 566.20 | 489.03 | 77.16 |
| 22 | 73.90 | 70.98 | 0.90 | 566.36 | 487.73 | 78.63 |
| 23 | 47.20 | 44.20 | 1.02 | 567.08 | 486.15 | 80.93 |
| 24 | 38.40 | 35.23 | 1.16 | 567.28 | 486.00 | 81.28 |
|
| AVG | 52.25 | 49.00 | 1.26 | 567.50 | 486.96 | 80.53 |
|
| MAX | 117.60 | 114.59 | 1.48 | 568.49 | 490.40 | 82.21 |
| MIN | 27.00 | 23.69 | 0.89 | 566.20 | 485.38 | 76.02 |