Grand Coulee Dam
Tuesday May 5, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 110.60 | 110.60 | 0.00 | 1251.30 | 963.30 | 288.00 |
| 2 | 93.40 | 93.40 | 0.00 | 1251.40 | 961.40 | 290.00 |
| 3 | 93.70 | 93.70 | 0.00 | 1251.30 | 960.80 | 290.50 |
| 4 | 97.90 | 97.90 | 0.00 | 1251.30 | 960.90 | 290.40 |
| 5 | 97.20 | 97.20 | 0.00 | 1251.40 | 960.50 | 290.90 |
| 6 | 113.10 | 113.10 | 0.00 | 1251.40 | 961.30 | 290.10 |
| 7 | 122.10 | 122.10 | 0.00 | 1251.40 | 962.20 | 289.20 |
| 8 | 136.50 | 136.50 | 0.00 | 1251.40 | 963.40 | 288.00 |
| 9 | 128.70 | 128.70 | 0.00 | 1251.40 | 963.10 | 288.30 |
| 10 | 131.70 | 131.70 | 0.00 | 1251.40 | 963.10 | 288.30 |
| 11 | 132.00 | 132.00 | 0.00 | 1251.40 | 963.00 | 288.40 |
| 12 | 137.90 | 137.90 | 0.00 | 1251.40 | 963.40 | 288.00 |
| 13 | 156.00 | 156.00 | 0.00 | 1251.30 | 964.70 | 286.60 |
| 14 | 154.10 | 154.10 | 0.00 | 1251.30 | 965.00 | 286.30 |
| 15 | 157.90 | 157.90 | 0.00 | 1251.30 | 965.50 | 285.80 |
| 16 | 154.60 | 154.60 | 0.00 | 1251.30 | 965.40 | 285.90 |
| 17 | 146.50 | 146.50 | 0.00 | 1251.40 | 964.80 | 286.60 |
| 18 | 156.50 | 156.50 | 0.00 | 1251.30 | 965.20 | 286.10 |
| 19 | 162.40 | 162.40 | 0.00 | 1251.20 | 965.90 | 285.30 |
| 20 | 160.50 | 160.50 | 0.00 | 1251.20 | 966.10 | 285.10 |
| 21 | 155.80 | 155.80 | 0.00 | 1251.20 | 965.90 | 285.30 |
| 22 | 159.50 | 159.50 | 0.00 | 1251.20 | 965.90 | 285.30 |
| 23 | 162.70 | 162.70 | 0.00 | 1251.20 | 966.20 | 285.00 |
| 24 | 153.00 | 153.00 | 0.00 | 1251.20 | 965.70 | 285.50 |
|
| AVG | 136.43 | 136.43 | 0.00 | 1251.32 | 963.86 | 287.45 |
|
| MAX | 162.70 | 162.70 | 0.00 | 1251.40 | 966.20 | 290.90 |
| MIN | 93.40 | 93.40 | 0.00 | 1251.20 | 960.50 | 285.00 |