Grand Coulee Dam
Sunday August 31, 2025
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 75.90 | 75.90 | 0.00 | 1277.30 | 958.40 | 318.90 |
| 2 | 71.70 | 71.70 | 0.00 | 1277.30 | 958.00 | 319.30 |
| 3 | 71.20 | 71.20 | 0.00 | 1277.30 | 957.90 | 319.40 |
| 4 | 64.00 | 64.00 | 0.00 | 1277.40 | 957.40 | 320.00 |
| 5 | 62.30 | 62.30 | 0.00 | 1277.40 | 957.10 | 320.30 |
| 6 | 62.50 | 62.50 | 0.00 | 1277.40 | 957.10 | 320.30 |
| 7 | 62.20 | 62.20 | 0.00 | 1277.30 | 957.20 | 320.10 |
| 8 | 62.30 | 62.30 | 0.00 | 1277.40 | 957.10 | 320.30 |
| 9 | 74.40 | 74.40 | 0.00 | 1277.30 | 957.90 | 319.40 |
| 10 | 85.00 | 85.00 | 0.00 | 1277.30 | 959.00 | 318.30 |
| 11 | 81.40 | 81.40 | 0.00 | 1277.40 | 959.00 | 318.40 |
| 12 | 88.10 | 88.10 | 0.00 | 1277.40 | 959.20 | 318.20 |
| 13 | 104.90 | 104.90 | 0.00 | 1277.20 | 960.70 | 316.50 |
| 14 | 113.30 | 113.30 | 0.00 | 1277.20 | 961.70 | 315.50 |
| 15 | 124.80 | 124.80 | 0.00 | 1277.20 | 962.60 | 314.60 |
| 16 | 122.80 | 122.80 | 0.00 | 1277.10 | 962.80 | 314.30 |
| 17 | 132.10 | 132.10 | 0.00 | 1277.00 | 963.50 | 313.50 |
| 18 | 143.70 | 143.70 | 0.00 | 1277.00 | 964.40 | 312.60 |
| 19 | 162.60 | 162.60 | 0.00 | 1276.80 | 966.10 | 310.70 |
| 20 | 153.30 | 153.30 | 0.00 | 1276.70 | 966.20 | 310.50 |
| 21 | 121.80 | 121.80 | 0.00 | 1276.80 | 963.80 | 313.00 |
| 22 | 110.00 | 108.70 | 1.30 | 1276.70 | 962.30 | 314.40 |
| 23 | 89.90 | 89.80 | 0.10 | 1276.70 | 960.60 | 316.10 |
| 24 | 82.80 | 82.80 | 0.00 | 1276.70 | 959.60 | 317.10 |
|
| AVG | 96.79 | 96.73 | 0.06 | 1277.14 | 960.40 | 316.74 |
|
| MAX | 162.60 | 162.60 | 1.30 | 1277.40 | 966.20 | 320.30 |
| MIN | 62.20 | 62.20 | 0.00 | 1276.70 | 957.10 | 310.50 |