McNary Dam
Saturday June 20, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 159.60 | 62.10 | 92.80 | 339.12 | 265.04 | 74.08 |
| 2 | 160.60 | 62.90 | 93.00 | 339.15 | 265.12 | 74.03 |
| 3 | 161.00 | 63.10 | 93.20 | 339.18 | 265.03 | 74.15 |
| 4 | 160.80 | 63.00 | 93.00 | 339.16 | 265.08 | 74.08 |
| 5 | 161.00 | 63.10 | 93.20 | 339.19 | 265.18 | 74.01 |
| 6 | 160.60 | 62.70 | 93.20 | 339.19 | 265.14 | 74.05 |
| 7 | 150.40 | 52.40 | 93.30 | 339.23 | 264.96 | 74.27 |
| 8 | 149.90 | 51.90 | 93.40 | 339.26 | 264.96 | 74.30 |
| 9 | 150.90 | 52.80 | 93.50 | 339.28 | 265.07 | 74.21 |
| 10 | 149.90 | 51.70 | 93.40 | 339.35 | 265.13 | 74.22 |
| 11 | 149.50 | 51.70 | 93.20 | 339.35 | 265.26 | 74.09 |
| 12 | 149.40 | 51.50 | 93.20 | 339.36 | 265.37 | 73.99 |
| 13 | 150.60 | 52.50 | 93.40 | 339.47 | 265.15 | 74.32 |
| 14 | 150.60 | 52.30 | 93.60 | 339.50 | 265.10 | 74.40 |
| 15 | 151.10 | 53.00 | 93.40 | 339.52 | 265.13 | 74.39 |
| 16 | 149.90 | 51.90 | 93.30 | 339.55 | 265.18 | 74.37 |
| 17 | 149.90 | 51.80 | 93.40 | 339.55 | 265.25 | 74.30 |
| 18 | 151.00 | 52.90 | 93.40 | 339.57 | 265.23 | 74.34 |
| 19 | 150.40 | 52.30 | 93.40 | 339.60 | 265.30 | 74.30 |
| 20 | 148.70 | 50.60 | 93.40 | 339.57 | 265.26 | 74.31 |
| 21 | 148.20 | 50.10 | 93.40 | 339.61 | 265.31 | 74.30 |
| 22 | 149.60 | 51.40 | 93.50 | 339.61 | 265.39 | 74.22 |
| 23 | 150.80 | 52.40 | 93.70 | 339.65 | 265.36 | 74.29 |
| 24 | 150.50 | 52.40 | 93.40 | 339.65 | 265.28 | 74.37 |
|
| AVG | 152.70 | 54.69 | 93.32 | 339.40 | 265.18 | 74.22 |
|
| MAX | 161.00 | 63.10 | 93.70 | 339.65 | 265.39 | 74.40 |
| MIN | 148.20 | 50.10 | 92.80 | 339.12 | 264.96 | 73.99 |