Grand Coulee Dam
Wednesday February 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 114.20 | 114.20 | 0.00 | 1276.80 | 962.00 | 314.80 |
| 2 | 113.70 | 113.70 | 0.00 | 1276.70 | 961.50 | 315.20 |
| 3 | 112.20 | 112.20 | 0.00 | 1276.70 | 961.40 | 315.30 |
| 4 | 115.10 | 115.10 | 0.00 | 1276.80 | 961.50 | 315.30 |
| 5 | 122.10 | 122.10 | 0.00 | 1276.70 | 962.10 | 314.60 |
| 6 | 117.90 | 117.90 | 0.00 | 1276.60 | 962.00 | 314.60 |
| 7 | 122.30 | 122.30 | 0.00 | 1276.60 | 962.20 | 314.40 |
| 8 | 134.10 | 134.10 | 0.00 | 1276.60 | 963.30 | 313.30 |
| 9 | 113.80 | 113.80 | 0.00 | 1276.60 | 962.10 | 314.50 |
| 10 | 98.50 | 98.50 | 0.00 | 1276.60 | 960.40 | 316.20 |
| 11 | 90.10 | 90.10 | 0.00 | 1276.60 | 959.40 | 317.20 |
| 12 | 78.70 | 78.70 | 0.00 | 1276.60 | 958.50 | 318.10 |
| 13 | 78.20 | 78.20 | 0.00 | 1276.60 | 958.30 | 318.30 |
| 14 | 72.40 | 72.40 | 0.00 | 1276.70 | 957.90 | 318.80 |
| 15 | 67.50 | 67.50 | 0.00 | 1276.70 | 957.50 | 319.20 |
| 16 | 66.00 | 66.00 | 0.00 | 1276.80 | 957.20 | 319.60 |
| 17 | 92.60 | 92.60 | 0.00 | 1276.80 | 959.20 | 317.60 |
| 18 | 107.00 | 107.00 | 0.00 | 1276.80 | 960.80 | 316.00 |
| 19 | 127.00 | 127.00 | 0.00 | 1276.70 | 962.50 | 314.20 |
| 20 | 125.60 | 125.60 | 0.00 | 1276.70 | 962.90 | 313.80 |
| 21 | 117.10 | 117.10 | 0.00 | 1276.70 | 962.10 | 314.60 |
| 22 | 103.20 | 103.20 | 0.00 | 1276.80 | 960.80 | 316.00 |
| 23 | 117.70 | 117.70 | 0.00 | 1276.80 | 961.50 | 315.30 |
| 24 | 114.80 | 114.80 | 0.00 | 1276.80 | 961.90 | 314.90 |
|
| AVG | 105.07 | 105.07 | 0.00 | 1276.70 | 960.79 | 315.91 |
|
| MAX | 134.10 | 134.10 | 0.00 | 1276.80 | 963.30 | 319.60 |
| MIN | 66.00 | 66.00 | 0.00 | 1276.60 | 957.20 | 313.30 |