Wanapum Dam
Monday May 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 167.80 | 130.90 | 34.91 | 570.79 | 493.29 | 77.50 |
| 2 | 180.60 | 138.52 | 40.07 | 570.87 | 493.68 | 77.19 |
| 3 | 175.40 | 128.50 | 44.92 | 571.05 | 493.52 | 77.53 |
| 4 | 174.30 | 122.24 | 50.02 | 570.88 | 493.28 | 77.60 |
| 5 | 172.60 | 120.61 | 49.98 | 570.90 | 493.29 | 77.61 |
| 6 | 176.70 | 131.32 | 43.42 | 570.81 | 493.54 | 77.28 |
| 7 | 155.90 | 109.98 | 43.87 | 570.80 | 492.22 | 78.58 |
| 8 | 152.70 | 75.51 | 75.16 | 570.91 | 492.04 | 78.87 |
| 9 | 171.10 | 68.67 | 100.47 | 570.87 | 492.36 | 78.51 |
| 10 | 173.40 | 71.07 | 100.28 | 570.91 | 492.22 | 78.69 |
| 11 | 174.50 | 72.51 | 100.02 | 570.56 | 492.24 | 78.32 |
| 12 | 173.10 | 71.66 | 99.42 | 570.45 | 492.20 | 78.25 |
| 13 | 174.90 | 74.02 | 98.88 | 570.30 | 492.32 | 77.99 |
| 14 | 174.60 | 73.89 | 98.66 | 570.13 | 492.55 | 77.57 |
| 15 | 174.80 | 74.60 | 98.20 | 569.83 | 492.21 | 77.61 |
| 16 | 170.60 | 70.60 | 98.03 | 569.58 | 492.27 | 77.31 |
| 17 | 173.80 | 73.78 | 98.01 | 569.51 | 492.57 | 76.94 |
| 18 | 175.70 | 79.85 | 93.85 | 569.55 | 492.13 | 77.43 |
| 19 | 172.10 | 90.22 | 79.83 | 569.34 | 492.34 | 77.00 |
| 20 | 179.70 | 137.38 | 40.27 | 569.33 | 492.70 | 76.63 |
| 21 | 147.60 | 126.17 | 19.43 | 569.71 | 491.81 | 77.90 |
| 22 | 160.80 | 139.26 | 19.57 | 569.76 | 492.34 | 77.42 |
| 23 | 165.00 | 143.31 | 19.64 | 569.92 | 492.67 | 77.25 |
| 24 | 157.10 | 135.30 | 19.81 | 570.19 | 492.14 | 78.05 |
|
| AVG | 169.78 | 102.49 | 65.28 | 570.29 | 492.58 | 77.71 |
|
| MAX | 180.60 | 143.31 | 100.47 | 571.05 | 493.68 | 78.87 |
| MIN | 147.60 | 68.67 | 19.43 | 569.33 | 491.81 | 76.63 |