Grand Coulee Dam
Wednesday June 17, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 92.00 | 92.00 | 0.00 | 1281.60 | 960.90 | 320.70 |
| 2 | 77.60 | 77.60 | 0.00 | 1281.70 | 959.40 | 322.30 |
| 3 | 67.40 | 67.40 | 0.00 | 1281.70 | 958.10 | 323.60 |
| 4 | 76.30 | 76.30 | 0.00 | 1281.80 | 958.50 | 323.30 |
| 5 | 77.30 | 77.30 | 0.00 | 1281.90 | 958.60 | 323.30 |
| 6 | 90.30 | 90.30 | 0.00 | 1281.90 | 959.60 | 322.30 |
| 7 | 85.40 | 85.40 | 0.00 | 1281.90 | 959.60 | 322.30 |
| 8 | 83.70 | 83.70 | 0.00 | 1282.00 | 958.80 | 323.20 |
| 9 | 91.80 | 91.80 | 0.00 | 1282.10 | 959.50 | 322.60 |
| 10 | 92.20 | 92.20 | 0.00 | 1282.10 | 960.00 | 322.10 |
| 11 | 98.50 | 98.50 | 0.00 | 1282.20 | 960.40 | 321.80 |
| 12 | 96.20 | 96.20 | 0.00 | 1282.20 | 960.40 | 321.80 |
| 13 | 96.00 | 96.00 | 0.00 | 1282.30 | 960.50 | 321.80 |
| 14 | 92.10 | 92.10 | 0.00 | 1282.30 | 960.20 | 322.10 |
| 15 | 101.50 | 101.50 | 0.00 | 1282.40 | 960.50 | 321.90 |
| 16 | 103.80 | 103.80 | 0.00 | 1282.40 | 960.80 | 321.60 |
| 17 | 98.90 | 98.90 | 0.00 | 1282.50 | 960.40 | 322.10 |
| 18 | 98.90 | 98.90 | 0.00 | 1282.60 | 960.10 | 322.50 |
| 19 | 122.50 | 122.50 | 0.00 | 1282.50 | 961.60 | 320.90 |
| 20 | 140.00 | 140.00 | 0.00 | 1282.50 | 963.50 | 319.00 |
| 21 | 142.40 | 142.40 | 0.00 | 1282.50 | 964.30 | 318.20 |
| 22 | 133.10 | 133.10 | 0.00 | 1282.60 | 963.80 | 318.80 |
| 23 | 128.50 | 128.50 | 0.00 | 1282.60 | 963.30 | 319.30 |
| 24 | 119.30 | 119.30 | 0.00 | 1282.70 | 962.60 | 320.10 |
|
| AVG | 100.24 | 100.24 | 0.00 | 1282.21 | 960.64 | 321.57 |
|
| MAX | 142.40 | 142.40 | 0.00 | 1282.70 | 964.30 | 323.60 |
| MIN | 67.40 | 67.40 | 0.00 | 1281.60 | 958.10 | 318.20 |