Grand Coulee Dam
Tuesday January 27, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 119.80 | 119.80 | 0.00 | 1279.00 | 963.30 | 315.70 |
| 2 | 117.10 | 117.10 | 0.00 | 1279.00 | 962.50 | 316.50 |
| 3 | 123.40 | 123.40 | 0.00 | 1279.00 | 962.80 | 316.20 |
| 4 | 119.30 | 119.30 | 0.00 | 1279.00 | 962.60 | 316.40 |
| 5 | 120.20 | 120.20 | 0.00 | 1279.00 | 962.40 | 316.60 |
| 6 | 143.90 | 143.90 | 0.00 | 1278.90 | 963.90 | 315.00 |
| 7 | 150.00 | 150.00 | 0.00 | 1278.80 | 964.90 | 313.90 |
| 8 | 151.20 | 151.20 | 0.00 | 1278.80 | 965.50 | 313.30 |
| 9 | 141.10 | 141.10 | 0.00 | 1278.80 | 964.50 | 314.30 |
| 10 | 132.00 | 132.00 | 0.00 | 1278.80 | 963.70 | 315.10 |
| 11 | 128.30 | 128.30 | 0.00 | 1278.90 | 962.90 | 316.00 |
| 12 | 130.50 | 130.50 | 0.00 | 1278.80 | 962.70 | 316.10 |
| 13 | 131.30 | 131.30 | 0.00 | 1278.70 | 963.00 | 315.70 |
| 14 | 112.50 | 112.50 | 0.00 | 1278.70 | 962.40 | 316.30 |
| 15 | 104.30 | 104.30 | 0.00 | 1278.80 | 961.60 | 317.20 |
| 16 | 110.70 | 110.70 | 0.00 | 1278.80 | 961.80 | 317.00 |
| 17 | 148.20 | 148.20 | 0.00 | 1278.70 | 964.50 | 314.20 |
| 18 | 162.10 | 162.10 | 0.00 | 1278.70 | 966.70 | 312.00 |
| 19 | 163.20 | 163.20 | 0.00 | 1278.70 | 967.00 | 311.70 |
| 20 | 159.30 | 159.30 | 0.00 | 1278.60 | 966.80 | 311.80 |
| 21 | 137.90 | 137.90 | 0.00 | 1278.70 | 965.40 | 313.30 |
| 22 | 126.90 | 126.90 | 0.00 | 1278.80 | 964.20 | 314.60 |
| 23 | 120.20 | 120.20 | 0.00 | 1278.80 | 963.50 | 315.30 |
| 24 | 107.60 | 107.60 | 0.00 | 1278.80 | 962.50 | 316.30 |
|
| AVG | 131.71 | 131.71 | 0.00 | 1278.82 | 963.80 | 315.02 |
|
| MAX | 163.20 | 163.20 | 0.00 | 1279.00 | 967.00 | 317.20 |
| MIN | 104.30 | 104.30 | 0.00 | 1278.60 | 961.60 | 311.70 |