Wanapum Dam
Saturday August 1, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 138.00 | 117.21 | 18.77 | 568.44 | 491.17 | 77.27 |
| 2 | 127.40 | 106.65 | 18.72 | 568.53 | 490.99 | 77.54 |
| 3 | 115.80 | 95.19 | 18.62 | 567.96 | 489.95 | 78.00 |
| 4 | 103.80 | 83.53 | 18.31 | 567.88 | 489.62 | 78.27 |
| 5 | 123.90 | 103.54 | 18.38 | 568.08 | 490.47 | 77.61 |
| 6 | 111.70 | 91.33 | 18.36 | 567.76 | 489.58 | 78.18 |
| 7 | 97.40 | 77.12 | 18.27 | 567.91 | 488.93 | 78.99 |
| 8 | 68.00 | 47.52 | 18.48 | 568.23 | 487.33 | 80.89 |
| 9 | 71.10 | 50.53 | 18.55 | 568.35 | 487.71 | 80.64 |
| 10 | 79.10 | 58.22 | 18.84 | 568.96 | 488.09 | 80.87 |
| 11 | 81.10 | 59.75 | 19.38 | 569.67 | 488.24 | 81.43 |
| 12 | 92.30 | 70.69 | 19.58 | 569.91 | 488.64 | 81.27 |
| 13 | 84.40 | 62.75 | 19.68 | 569.87 | 488.34 | 81.52 |
| 14 | 70.00 | 48.20 | 19.79 | 569.81 | 487.64 | 82.18 |
| 15 | 75.00 | 53.45 | 19.59 | 569.71 | 488.12 | 81.58 |
| 16 | 81.50 | 59.97 | 19.54 | 569.62 | 488.41 | 81.21 |
| 17 | 108.60 | 87.20 | 19.40 | 569.15 | 490.02 | 79.12 |
| 18 | 132.70 | 111.66 | 19.02 | 568.77 | 490.86 | 77.91 |
| 19 | 127.30 | 106.40 | 18.88 | 568.66 | 490.58 | 78.08 |
| 20 | 124.30 | 103.58 | 18.71 | 568.23 | 490.41 | 77.82 |
| 21 | 114.60 | 94.09 | 18.50 | 568.10 | 489.78 | 78.32 |
| 22 | 119.10 | 98.70 | 18.37 | 567.86 | 490.26 | 77.60 |
| 23 | 132.90 | 112.68 | 18.24 | 567.72 | 490.71 | 77.02 |
| 24 | 118.40 | 98.15 | 18.25 | 567.90 | 490.20 | 77.70 |
|
| AVG | 104.10 | 83.25 | 18.84 | 568.63 | 489.42 | 79.21 |
|
| MAX | 138.00 | 117.21 | 19.79 | 569.91 | 491.17 | 82.18 |
| MIN | 68.00 | 47.52 | 18.24 | 567.72 | 487.33 | 77.02 |