Wanapum Dam
Friday May 8, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 132.70 | 111.53 | 19.21 | 569.25 | 491.47 | 77.77 |
| 2 | 142.60 | 121.34 | 19.30 | 569.40 | 491.68 | 77.72 |
| 3 | 152.50 | 131.15 | 19.35 | 569.28 | 492.17 | 77.11 |
| 4 | 149.10 | 128.07 | 19.06 | 568.71 | 492.00 | 76.71 |
| 5 | 147.20 | 126.37 | 18.83 | 568.59 | 491.85 | 76.75 |
| 6 | 147.50 | 126.81 | 18.69 | 568.22 | 492.16 | 76.06 |
| 7 | 135.90 | 115.11 | 18.74 | 568.66 | 491.43 | 77.22 |
| 8 | 131.80 | 110.95 | 18.85 | 568.75 | 490.88 | 77.86 |
| 9 | 105.60 | 84.60 | 18.96 | 568.85 | 489.66 | 79.19 |
| 10 | 100.60 | 79.55 | 19.07 | 569.02 | 489.85 | 79.18 |
| 11 | 98.50 | 77.28 | 19.20 | 569.30 | 488.92 | 80.38 |
| 12 | 79.40 | 58.14 | 19.28 | 569.27 | 488.20 | 81.07 |
| 13 | 76.60 | 55.28 | 19.30 | 569.43 | 487.74 | 81.69 |
| 14 | 67.20 | 45.69 | 19.49 | 569.75 | 487.04 | 82.70 |
| 15 | 71.40 | 49.86 | 19.56 | 569.62 | 486.96 | 82.66 |
| 16 | 72.30 | 50.79 | 19.52 | 569.71 | 486.92 | 82.79 |
| 17 | 80.60 | 59.03 | 19.54 | 569.62 | 487.23 | 82.39 |
| 18 | 103.50 | 82.05 | 19.40 | 569.04 | 490.05 | 79.00 |
| 19 | 164.90 | 144.09 | 18.82 | 568.55 | 492.18 | 76.38 |
| 20 | 166.10 | 145.11 | 19.01 | 569.14 | 492.23 | 76.91 |
| 21 | 173.10 | 151.98 | 19.07 | 568.79 | 492.67 | 76.12 |
| 22 | 158.90 | 137.90 | 18.97 | 568.90 | 492.34 | 76.56 |
| 23 | 157.10 | 135.90 | 19.23 | 569.44 | 491.97 | 77.48 |
| 24 | 134.80 | 113.45 | 19.35 | 569.40 | 490.86 | 78.54 |
|
| AVG | 122.91 | 101.75 | 19.16 | 569.11 | 490.35 | 78.76 |
|
| MAX | 173.10 | 151.98 | 19.56 | 569.75 | 492.67 | 82.79 |
| MIN | 67.20 | 45.69 | 18.69 | 568.22 | 486.92 | 76.06 |