Grand Coulee Dam
Thursday August 6, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 69.50 | 69.50 | 0.00 | 1283.70 | 958.40 | 325.30 |
| 2 | 53.00 | 53.00 | 0.00 | 1283.70 | 957.20 | 326.50 |
| 3 | 44.50 | 44.50 | 0.00 | 1283.70 | 956.10 | 327.60 |
| 4 | 43.40 | 43.40 | 0.00 | 1283.70 | 956.00 | 327.70 |
| 5 | 46.70 | 46.70 | 0.00 | 1283.70 | 956.30 | 327.40 |
| 6 | 52.40 | 52.40 | 0.00 | 1283.70 | 956.50 | 327.20 |
| 7 | 53.60 | 53.60 | 0.00 | 1283.80 | 956.50 | 327.30 |
| 8 | 59.10 | 59.10 | 0.00 | 1283.80 | 956.60 | 327.20 |
| 9 | 71.80 | 71.80 | 0.00 | 1283.80 | 957.60 | 326.20 |
| 10 | 81.90 | 81.90 | 0.00 | 1283.80 | 958.20 | 325.60 |
| 11 | 89.30 | 89.30 | 0.00 | 1283.80 | 958.90 | 324.90 |
| 12 | 95.80 | 95.80 | 0.00 | 1283.80 | 959.60 | 324.20 |
| 13 | 105.90 | 105.90 | 0.00 | 1283.70 | 960.50 | 323.20 |
| 14 | 118.10 | 118.10 | 0.00 | 1283.70 | 961.70 | 322.00 |
| 15 | 127.30 | 127.30 | 0.00 | 1283.60 | 962.80 | 320.80 |
| 16 | 142.40 | 142.40 | 0.00 | 1283.60 | 964.00 | 319.60 |
| 17 | 147.50 | 147.50 | 0.00 | 1283.50 | 964.80 | 318.70 |
| 18 | 155.20 | 155.20 | 0.00 | 1283.50 | 965.50 | 318.00 |
| 19 | 160.90 | 160.90 | 0.00 | 1283.40 | 966.20 | 317.20 |
| 20 | 153.00 | 153.00 | 0.00 | 1283.40 | 966.00 | 317.40 |
| 21 | 135.50 | 135.50 | 0.00 | 1283.40 | 964.70 | 318.70 |
| 22 | 106.10 | 105.30 | 0.80 | 1283.40 | 962.50 | 320.90 |
| 23 | 86.70 | 86.60 | 0.10 | 1283.40 | 960.40 | 323.00 |
| 24 | 71.20 | 71.20 | 0.00 | 1283.40 | 958.60 | 324.80 |
|
| AVG | 94.62 | 94.58 | 0.04 | 1283.63 | 960.23 | 323.39 |
|
| MAX | 160.90 | 160.90 | 0.80 | 1283.80 | 966.20 | 327.70 |
| MIN | 43.40 | 43.40 | 0.00 | 1283.40 | 956.00 | 317.20 |