Grand Coulee Dam
Thursday January 22, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 110.70 | 110.70 | 0.00 | 1280.50 | 962.30 | 318.20 |
| 2 | 100.30 | 100.30 | 0.00 | 1280.50 | 961.20 | 319.30 |
| 3 | 102.30 | 102.30 | 0.00 | 1280.50 | 961.10 | 319.40 |
| 4 | 106.30 | 106.30 | 0.00 | 1280.50 | 961.20 | 319.30 |
| 5 | 159.00 | 159.00 | 0.00 | 1280.40 | 964.80 | 315.60 |
| 6 | 148.70 | 148.70 | 0.00 | 1280.40 | 965.30 | 315.10 |
| 7 | 151.50 | 151.50 | 0.00 | 1280.40 | 965.60 | 314.80 |
| 8 | 158.60 | 158.60 | 0.00 | 1280.40 | 966.10 | 314.30 |
| 9 | 158.70 | 158.70 | 0.00 | 1280.40 | 966.40 | 314.00 |
| 10 | 149.90 | 149.90 | 0.00 | 1280.40 | 965.90 | 314.50 |
| 11 | 143.70 | 143.70 | 0.00 | 1280.30 | 965.30 | 315.00 |
| 12 | 143.80 | 143.80 | 0.00 | 1280.30 | 965.10 | 315.20 |
| 13 | 139.00 | 139.00 | 0.00 | 1280.30 | 964.90 | 315.40 |
| 14 | 130.80 | 130.80 | 0.00 | 1280.30 | 964.20 | 316.10 |
| 15 | 124.40 | 124.40 | 0.00 | 1280.30 | 963.60 | 316.70 |
| 16 | 122.20 | 122.20 | 0.00 | 1280.30 | 963.20 | 317.10 |
| 17 | 140.50 | 140.50 | 0.00 | 1280.30 | 964.30 | 316.00 |
| 18 | 154.60 | 154.60 | 0.00 | 1280.20 | 965.60 | 314.60 |
| 19 | 151.30 | 151.30 | 0.00 | 1280.20 | 965.90 | 314.30 |
| 20 | 134.10 | 134.10 | 0.00 | 1280.20 | 964.70 | 315.50 |
| 21 | 120.80 | 120.80 | 0.00 | 1280.30 | 963.30 | 317.00 |
| 22 | 110.10 | 110.10 | 0.00 | 1280.30 | 962.20 | 318.10 |
| 23 | 106.50 | 106.50 | 0.00 | 1280.40 | 961.70 | 318.70 |
| 24 | 96.80 | 96.80 | 0.00 | 1280.30 | 960.70 | 319.60 |
|
| AVG | 131.86 | 131.86 | 0.00 | 1280.35 | 963.94 | 316.41 |
|
| MAX | 159.00 | 159.00 | 0.00 | 1280.50 | 966.40 | 319.60 |
| MIN | 96.80 | 96.80 | 0.00 | 1280.20 | 960.70 | 314.00 |