Grand Coulee Dam
Friday July 10, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 84.90 | 84.90 | 0.00 | 1289.10 | 959.40 | 329.70 |
| 2 | 74.70 | 74.40 | 0.00 | 1289.10 | 958.50 | 330.60 |
| 3 | 56.90 | 56.90 | 0.00 | 1289.10 | 957.10 | 332.00 |
| 4 | 55.40 | 55.40 | 0.00 | 1289.20 | 956.30 | 332.90 |
| 5 | 56.10 | 56.10 | 0.00 | 1289.30 | 956.00 | 333.30 |
| 6 | 46.20 | 46.20 | 0.00 | 1289.40 | 955.00 | 334.40 |
| 7 | 63.20 | 63.20 | 0.00 | 1289.40 | 955.70 | 333.70 |
| 8 | 76.90 | 76.90 | 0.00 | 1289.40 | 956.70 | 332.70 |
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| AVG | 64.29 | 64.25 | 0.00 | 1289.25 | 956.84 | 332.41 |
|
| MAX | 84.90 | 84.90 | 0.00 | 1289.40 | 959.40 | 334.40 |
| MIN | 46.20 | 46.20 | 0.00 | 1289.10 | 955.00 | 329.70 |