Grand Coulee Dam
Sunday May 3, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 143.90 | 143.90 | 0.00 | 1251.60 | 965.30 | 286.30 |
| 2 | 134.10 | 134.10 | 0.00 | 1251.50 | 964.30 | 287.20 |
| 3 | 123.30 | 123.30 | 0.00 | 1251.60 | 963.40 | 288.20 |
| 4 | 120.90 | 120.90 | 0.00 | 1251.60 | 963.10 | 288.50 |
| 5 | 118.10 | 118.10 | 0.00 | 1251.50 | 962.90 | 288.60 |
| 6 | 111.30 | 111.30 | 0.00 | 1251.50 | 962.20 | 289.30 |
| 7 | 119.20 | 119.20 | 0.00 | 1251.50 | 962.50 | 289.00 |
| 8 | 112.60 | 112.60 | 0.00 | 1251.50 | 962.10 | 289.40 |
| 9 | 93.60 | 93.60 | 0.00 | 1251.60 | 960.60 | 291.00 |
| 10 | 95.50 | 95.50 | 0.00 | 1251.60 | 960.20 | 291.40 |
| 11 | 98.60 | 98.60 | 0.00 | 1251.60 | 960.40 | 291.20 |
| 12 | 108.50 | 108.50 | 0.00 | 1251.60 | 961.10 | 290.50 |
| 13 | 103.10 | 103.10 | 0.00 | 1251.60 | 960.90 | 290.70 |
| 14 | 103.00 | 103.00 | 0.00 | 1251.70 | 960.70 | 291.00 |
| 15 | 103.10 | 103.10 | 0.00 | 1251.70 | 960.60 | 291.10 |
| 16 | 123.40 | 123.40 | 0.00 | 1251.70 | 961.90 | 289.80 |
| 17 | 132.00 | 132.00 | 0.00 | 1251.70 | 963.10 | 288.60 |
| 18 | 139.50 | 139.50 | 0.00 | 1251.70 | 963.90 | 287.80 |
| 19 | 163.10 | 163.10 | 0.00 | 1251.60 | 965.80 | 285.80 |
| 20 | 164.00 | 164.00 | 0.00 | 1251.60 | 966.40 | 285.20 |
| 21 | 161.10 | 161.10 | 0.00 | 1251.60 | 966.30 | 285.30 |
| 22 | 173.50 | 173.50 | 0.00 | 1251.60 | 967.20 | 284.40 |
| 23 | 155.80 | 155.80 | 0.00 | 1251.60 | 966.30 | 285.30 |
| 24 | 147.80 | 147.80 | 0.00 | 1251.60 | 965.40 | 286.20 |
|
| AVG | 127.04 | 127.04 | 0.00 | 1251.60 | 963.19 | 288.41 |
|
| MAX | 173.50 | 173.50 | 0.00 | 1251.70 | 967.20 | 291.40 |
| MIN | 93.60 | 93.60 | 0.00 | 1251.50 | 960.20 | 284.40 |