Grand Coulee Dam
Wednesday May 6, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 131.70 | 131.70 | 0.00 | 1251.20 | 964.10 | 287.10 |
| 2 | 115.80 | 115.80 | 0.00 | 1251.20 | 962.30 | 288.90 |
| 3 | 104.80 | 104.80 | 0.00 | 1251.30 | 961.10 | 290.20 |
| 4 | 92.10 | 92.10 | 0.00 | 1251.30 | 959.90 | 291.40 |
| 5 | 88.30 | 88.30 | 0.00 | 1251.40 | 959.20 | 292.20 |
| 6 | 103.70 | 103.70 | 0.00 | 1251.30 | 960.20 | 291.10 |
| 7 | 98.20 | 98.20 | 0.00 | 1251.40 | 960.10 | 291.30 |
| 8 | 91.90 | 91.90 | 0.00 | 1251.50 | 959.50 | 292.00 |
| 9 | 79.60 | 79.60 | 0.00 | 1251.50 | 958.10 | 293.40 |
| 10 | 74.70 | 74.70 | 0.00 | 1251.70 | 957.40 | 294.30 |
| 11 | 66.70 | 66.70 | 0.00 | 1251.80 | 957.10 | 294.70 |
| 12 | 61.80 | 61.80 | 0.00 | 1251.80 | 956.70 | 295.10 |
| 13 | 69.60 | 69.60 | 0.00 | 1251.80 | 957.20 | 294.60 |
| 14 | 58.40 | 58.40 | 0.00 | 1251.90 | 957.00 | 294.90 |
| 15 | 60.10 | 60.10 | 0.00 | 1252.00 | 956.90 | 295.10 |
| 16 | 67.80 | 67.80 | 0.00 | 1252.00 | 957.70 | 294.30 |
| 17 | 67.30 | 67.30 | 0.00 | 1252.10 | 958.00 | 294.10 |
| 18 | 99.00 | 99.00 | 0.00 | 1252.10 | 960.10 | 292.00 |
| 19 | 133.00 | 133.00 | 0.00 | 1252.00 | 963.30 | 288.70 |
| 20 | 127.90 | 127.90 | 0.00 | 1252.10 | 964.20 | 287.90 |
| 21 | 126.10 | 126.10 | 0.00 | 1252.10 | 964.00 | 288.10 |
| 22 | 119.10 | 119.10 | 0.00 | 1252.10 | 963.30 | 288.80 |
| 23 | 115.00 | 115.00 | 0.00 | 1252.30 | 962.80 | 289.50 |
| 24 | 90.80 | 90.80 | 0.00 | 1252.50 | 960.90 | 291.60 |
|
| AVG | 93.47 | 93.47 | 0.00 | 1251.77 | 960.05 | 291.72 |
|
| MAX | 133.00 | 133.00 | 0.00 | 1252.50 | 964.20 | 295.10 |
| MIN | 58.40 | 58.40 | 0.00 | 1251.20 | 956.70 | 287.10 |