Wanapum Dam
Friday June 19, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 133.30 | 113.96 | 17.30 | 566.53 | 490.87 | 75.67 |
| 2 | 120.20 | 100.92 | 17.33 | 566.24 | 490.35 | 75.89 |
| 3 | 114.60 | 95.43 | 17.20 | 566.34 | 489.90 | 76.44 |
| 4 | 100.50 | 81.15 | 17.34 | 566.53 | 489.54 | 77.00 |
| 5 | 98.80 | 79.46 | 17.36 | 566.41 | 489.35 | 77.06 |
| 6 | 131.40 | 112.17 | 17.25 | 566.30 | 491.21 | 75.09 |
| 7 | 145.30 | 126.08 | 17.21 | 566.37 | 491.73 | 74.64 |
| 8 | 136.50 | 117.14 | 17.31 | 566.44 | 491.36 | 75.08 |
| 9 | 143.70 | 124.42 | 17.28 | 566.37 | 491.72 | 74.65 |
| 10 | 143.80 | 124.52 | 17.27 | 566.42 | 491.78 | 74.64 |
| 11 | 145.60 | 126.34 | 17.30 | 566.35 | 491.89 | 74.46 |
| 12 | 148.20 | 128.96 | 17.27 | 566.37 | 491.93 | 74.44 |
| 13 | 146.20 | 126.91 | 17.30 | 566.49 | 491.81 | 74.69 |
| 14 | 139.70 | 120.40 | 17.29 | 566.28 | 491.70 | 74.58 |
| 15 | 153.80 | 134.52 | 17.31 | 566.57 | 492.35 | 74.22 |
| 16 | 153.40 | 133.93 | 17.49 | 566.77 | 492.30 | 74.47 |
| 17 | 160.60 | 141.00 | 17.56 | 566.83 | 492.56 | 74.27 |
| 18 | 159.00 | 139.40 | 17.64 | 566.96 | 492.51 | 74.45 |
| 19 | 153.60 | 133.78 | 17.78 | 567.25 | 492.37 | 74.88 |
| 20 | 157.70 | 137.84 | 17.86 | 567.26 | 492.49 | 74.78 |
| 21 | 149.40 | 129.45 | 17.99 | 567.59 | 492.18 | 75.41 |
| 22 | 148.40 | 128.19 | 18.20 | 567.87 | 492.07 | 75.80 |
| 23 | 123.40 | 102.95 | 18.45 | 568.35 | 490.63 | 77.72 |
| 24 | 111.40 | 90.66 | 18.74 | 568.59 | 490.22 | 78.38 |
|
| AVG | 138.27 | 118.73 | 17.54 | 566.81 | 491.45 | 75.36 |
|
| MAX | 160.60 | 141.00 | 18.74 | 568.59 | 492.56 | 78.38 |
| MIN | 98.80 | 79.46 | 17.20 | 566.24 | 489.35 | 74.22 |