Grand Coulee Dam
Monday June 22, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 116.10 | 116.10 | 0.00 | 1285.00 | 962.30 | 322.70 |
| 2 | 105.00 | 105.00 | 0.00 | 1285.00 | 961.70 | 323.30 |
| 3 | 95.80 | 95.80 | 0.00 | 1285.00 | 960.60 | 324.40 |
| 4 | 92.50 | 92.50 | 0.00 | 1285.00 | 960.20 | 324.80 |
| 5 | 93.40 | 93.40 | 0.00 | 1285.00 | 960.20 | 324.80 |
| 6 | 105.70 | 105.70 | 0.00 | 1285.10 | 961.00 | 324.10 |
| 7 | 91.40 | 91.40 | 0.00 | 1285.10 | 960.20 | 324.90 |
| 8 | 93.90 | 93.90 | 0.00 | 1285.10 | 959.80 | 325.30 |
| 9 | 93.10 | 93.10 | 0.00 | 1285.10 | 959.80 | 325.30 |
| 10 | 102.70 | 102.70 | 0.00 | 1285.20 | 960.40 | 324.80 |
| 11 | 106.60 | 106.60 | 0.00 | 1285.20 | 960.70 | 324.50 |
| 12 | 121.50 | 121.50 | 0.00 | 1285.20 | 961.70 | 323.50 |
| 13 | 128.20 | 128.20 | 0.00 | 1285.20 | 962.70 | 322.50 |
| 14 | 133.10 | 133.10 | 0.00 | 1285.20 | 963.20 | 322.00 |
| 15 | 137.80 | 137.80 | 0.00 | 1285.20 | 963.60 | 321.60 |
| 16 | 140.00 | 140.00 | 0.00 | 1285.20 | 963.90 | 321.30 |
| 17 | 139.90 | 139.90 | 0.00 | 1285.20 | 964.00 | 321.20 |
| 18 | 149.00 | 149.00 | 0.00 | 1285.20 | 964.60 | 320.60 |
| 19 | 165.20 | 165.20 | 0.00 | 1285.10 | 965.90 | 319.20 |
| 20 | 168.90 | 168.90 | 0.00 | 1285.00 | 966.80 | 318.20 |
| 21 | 158.50 | 158.50 | 0.00 | 1285.10 | 966.40 | 318.70 |
| 22 | 153.50 | 153.50 | 0.00 | 1285.10 | 966.00 | 319.10 |
| 23 | 138.90 | 138.90 | 0.00 | 1285.10 | 964.90 | 320.20 |
| 24 | 123.50 | 123.50 | 0.00 | 1285.10 | 963.60 | 321.50 |
|
| AVG | 123.09 | 123.09 | 0.00 | 1285.11 | 962.68 | 322.44 |
|
| MAX | 168.90 | 168.90 | 0.00 | 1285.20 | 966.80 | 325.30 |
| MIN | 91.40 | 91.40 | 0.00 | 1285.00 | 959.80 | 318.20 |