McNary Dam
Monday May 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 218.40 | 53.80 | 159.90 | 337.33 | 267.10 | 70.23 |
| 2 | 218.80 | 54.20 | 160.00 | 337.36 | 267.11 | 70.25 |
| 3 | 218.60 | 53.90 | 160.00 | 337.37 | 267.10 | 70.27 |
| 4 | 218.70 | 54.00 | 160.00 | 337.36 | 267.10 | 70.26 |
| 5 | 219.00 | 54.30 | 160.10 | 337.39 | 267.04 | 70.35 |
| 6 | 219.30 | 54.60 | 160.00 | 337.36 | 267.16 | 70.20 |
| 7 | 219.00 | 54.30 | 160.00 | 337.39 | 267.07 | 70.32 |
| 8 | 218.60 | 53.70 | 160.20 | 337.39 | 267.10 | 70.29 |
| 9 | 218.20 | 53.30 | 160.20 | 337.40 | 267.11 | 70.29 |
| 10 | 218.70 | 53.70 | 160.30 | 337.44 | 267.02 | 70.42 |
| 11 | 219.00 | 54.00 | 160.40 | 337.43 | 267.01 | 70.42 |
| 12 | 218.70 | 53.40 | 160.60 | 337.46 | 267.01 | 70.45 |
| 13 | 219.70 | 54.30 | 160.70 | 337.50 | 267.03 | 70.47 |
| 14 | 220.00 | 54.20 | 161.10 | 337.59 | 267.00 | 70.59 |
| 15 | 221.40 | 55.30 | 161.40 | 337.63 | 267.03 | 70.60 |
| 16 | 220.50 | 54.00 | 161.80 | 337.71 | 266.97 | 70.74 |
| 17 | 222.80 | 56.00 | 162.10 | 337.75 | 266.96 | 70.79 |
| 18 | 223.10 | 55.90 | 162.50 | 337.82 | 266.91 | 70.91 |
| 19 | 220.40 | 54.40 | 161.30 | 337.89 | 266.93 | 70.96 |
| 20 | 221.10 | 54.80 | 161.60 | 337.95 | 266.93 | 71.02 |
| 21 | 219.30 | 52.50 | 162.10 | 338.03 | 266.94 | 71.09 |
| 22 | 220.00 | 54.00 | 161.40 | 338.07 | 266.99 | 71.08 |
| 23 | 244.70 | 53.80 | 186.20 | 337.98 | 267.48 | 70.50 |
| 24 | 246.50 | 54.20 | 187.60 | 338.08 | 267.48 | 70.60 |
|
| AVG | 221.85 | 54.19 | 162.98 | 337.61 | 267.07 | 70.55 |
|
| MAX | 246.50 | 56.00 | 187.60 | 338.08 | 267.48 | 71.09 |
| MIN | 218.20 | 52.50 | 159.90 | 337.33 | 266.91 | 70.20 |