Wanapum Dam
Thursday September 17, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 34.70 | 31.53 | 1.22 | 567.34 | 485.88 | 81.46 |
| 2 | 31.90 | 28.68 | 1.21 | 567.32 | 485.70 | 81.62 |
| 3 | 35.80 | 32.55 | 1.20 | 567.22 | 485.96 | 81.26 |
| 4 | 34.40 | 31.18 | 1.20 | 567.38 | 485.70 | 81.69 |
| 5 | 36.30 | 33.10 | 1.19 | 567.09 | 486.12 | 80.97 |
| 6 | 61.90 | 58.81 | 1.10 | 566.83 | 487.47 | 79.36 |
| 7 | 75.20 | 72.18 | 1.05 | 566.80 | 487.89 | 78.92 |
| 8 | 61.10 | 58.10 | 1.04 | 566.76 | 487.04 | 79.72 |
| 9 | 38.00 | 34.99 | 1.02 | 566.65 | 486.08 | 80.57 |
| 10 | 40.50 | 37.47 | 1.01 | 566.67 | 486.68 | 79.99 |
| 11 | 47.50 | 44.51 | 1.00 | 566.73 | 486.83 | 79.90 |
| 12 | 44.80 | 41.68 | 1.08 | 567.01 | 486.45 | 80.56 |
| 13 | 51.10 | 47.99 | 1.09 | 566.87 | 487.23 | 79.64 |
| 14 | 58.80 | 55.71 | 1.08 | 566.93 | 487.40 | 79.53 |
| 15 | 76.00 | 72.95 | 1.09 | 566.85 | 488.60 | 78.25 |
| 16 | 79.20 | 76.18 | 1.04 | 566.61 | 488.62 | 77.98 |
| 17 | 98.40 | 95.42 | 0.96 | 566.43 | 489.38 | 77.05 |
| 18 | 75.40 | 72.50 | 0.90 | 566.04 | 488.29 | 77.76 |
| 19 | 81.80 | 78.95 | 0.85 | 566.15 | 488.43 | 77.73 |
| 20 | 81.00 | 78.09 | 0.89 | 566.36 | 488.26 | 78.09 |
| 21 | 77.20 | 74.26 | 0.95 | 566.57 | 488.07 | 78.50 |
| 22 | 67.20 | 64.20 | 1.00 | 566.68 | 487.53 | 79.15 |
| 23 | 47.20 | 44.09 | 1.06 | 566.97 | 486.48 | 80.50 |
| 24 | 42.00 | 38.85 | 1.16 | 567.38 | 486.12 | 81.26 |
|
| AVG | 57.39 | 54.33 | 1.06 | 566.82 | 487.18 | 79.64 |
|
| MAX | 98.40 | 95.42 | 1.22 | 567.38 | 489.38 | 81.69 |
| MIN | 31.90 | 28.68 | 0.85 | 566.04 | 485.70 | 77.05 |