Grand Coulee Dam
Monday August 3, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 69.30 | 69.30 | 0.00 | 1284.20 | 957.40 | 326.80 |
| 2 | 68.10 | 68.10 | 0.00 | 1284.20 | 957.20 | 327.00 |
| 3 | 63.20 | 63.20 | 0.00 | 1284.20 | 956.80 | 327.40 |
| 4 | 64.40 | 64.40 | 0.00 | 1284.20 | 956.80 | 327.40 |
| 5 | 67.40 | 67.40 | 0.00 | 1284.20 | 957.00 | 327.20 |
| 6 | 73.70 | 73.70 | 0.00 | 1284.30 | 957.60 | 326.70 |
| 7 | 65.30 | 65.30 | 0.00 | 1284.40 | 957.00 | 327.40 |
| 8 | 64.00 | 64.00 | 0.00 | 1284.30 | 956.60 | 327.70 |
| 9 | 66.60 | 66.60 | 0.00 | 1284.30 | 956.70 | 327.60 |
| 10 | 62.10 | 62.10 | 0.00 | 1284.30 | 956.60 | 327.70 |
| 11 | 62.50 | 62.50 | 0.00 | 1284.30 | 956.40 | 327.90 |
| 12 | 67.20 | 67.20 | 0.00 | 1284.30 | 956.90 | 327.40 |
| 13 | 78.70 | 78.70 | 0.00 | 1284.30 | 957.90 | 326.40 |
| 14 | 79.30 | 79.30 | 0.00 | 1284.30 | 959.40 | 324.90 |
| 15 | 108.00 | 108.00 | 0.00 | 1284.20 | 960.70 | 323.50 |
| 16 | 121.60 | 121.60 | 0.00 | 1284.20 | 961.90 | 322.30 |
| 17 | 148.00 | 148.00 | 0.00 | 1284.20 | 964.30 | 319.90 |
| 18 | 139.80 | 139.80 | 0.00 | 1284.20 | 964.80 | 319.40 |
| 19 | 143.30 | 143.30 | 0.00 | 1284.10 | 964.80 | 319.30 |
| 20 | 146.80 | 146.80 | 0.00 | 1284.00 | 965.30 | 318.70 |
| 21 | 124.20 | 124.20 | 0.00 | 1284.10 | 963.80 | 320.30 |
| 22 | 117.40 | 116.50 | 0.90 | 1284.10 | 962.70 | 321.40 |
| 23 | 91.80 | 91.80 | 0.00 | 1284.00 | 960.80 | 323.20 |
| 24 | 80.10 | 80.10 | 0.00 | 1284.00 | 959.20 | 324.80 |
|
| AVG | 90.53 | 90.50 | 0.04 | 1284.20 | 959.52 | 324.68 |
|
| MAX | 148.00 | 148.00 | 0.90 | 1284.40 | 965.30 | 327.90 |
| MIN | 62.10 | 62.10 | 0.00 | 1284.00 | 956.40 | 318.70 |