Wanapum Dam
Sunday June 21, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 102.20 | 83.46 | 16.72 | 565.44 | 489.67 | 75.77 |
| 2 | 95.20 | 76.53 | 16.66 | 565.50 | 489.20 | 76.30 |
| 3 | 93.80 | 75.10 | 16.68 | 565.48 | 489.35 | 76.13 |
| 4 | 97.20 | 78.50 | 16.67 | 565.44 | 489.40 | 76.04 |
| 5 | 105.80 | 87.18 | 16.61 | 565.40 | 490.03 | 75.37 |
| 6 | 113.50 | 95.01 | 16.54 | 565.20 | 490.08 | 75.12 |
| 7 | 96.60 | 78.12 | 16.50 | 565.26 | 489.06 | 76.21 |
| 8 | 78.10 | 59.53 | 16.53 | 565.19 | 488.39 | 76.80 |
| 9 | 84.30 | 65.88 | 16.40 | 565.01 | 489.04 | 75.97 |
| 10 | 85.80 | 67.45 | 16.38 | 565.10 | 488.79 | 76.31 |
| 11 | 92.30 | 73.88 | 16.39 | 565.15 | 489.13 | 76.02 |
| 12 | 97.70 | 79.29 | 16.45 | 565.16 | 489.42 | 75.74 |
| 13 | 111.90 | 93.52 | 16.36 | 564.85 | 490.14 | 74.71 |
| 14 | 101.70 | 83.50 | 16.17 | 564.67 | 489.44 | 75.23 |
| 15 | 89.80 | 71.71 | 16.06 | 564.54 | 488.84 | 75.69 |
| 16 | 83.40 | 65.40 | 16.04 | 564.61 | 488.75 | 75.86 |
| 17 | 97.10 | 78.93 | 16.13 | 564.82 | 489.27 | 75.55 |
| 18 | 97.90 | 79.68 | 16.24 | 564.88 | 489.31 | 75.57 |
| 19 | 113.00 | 94.66 | 16.29 | 564.97 | 490.58 | 74.39 |
| 20 | 119.30 | 100.89 | 16.38 | 565.07 | 490.88 | 74.19 |
| 21 | 117.40 | 98.88 | 16.51 | 565.42 | 490.16 | 75.26 |
| 22 | 109.90 | 91.22 | 16.66 | 565.47 | 490.04 | 75.43 |
| 23 | 130.60 | 111.94 | 16.66 | 565.60 | 491.04 | 74.56 |
| 24 | 122.30 | 103.47 | 16.84 | 565.91 | 490.45 | 75.46 |
|
| AVG | 101.53 | 83.07 | 16.45 | 565.17 | 489.60 | 75.57 |
|
| MAX | 130.60 | 111.94 | 16.84 | 565.91 | 491.04 | 76.80 |
| MIN | 78.10 | 59.53 | 16.04 | 564.54 | 488.39 | 74.19 |