Grand Coulee Dam
Sunday November 1, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 43.90 | 43.90 | 0.00 | 1288.50 | 955.90 | 332.60 |
| 2 | 39.20 | 39.20 | 0.00 | 1288.50 | 955.50 | 333.00 |
| 3 | 37.40 | 37.40 | 0.00 | 1288.50 | 955.10 | 333.40 |
| 4 | 38.60 | 38.60 | 0.00 | 1288.50 | 955.40 | 333.10 |
| 5 | 44.90 | 44.90 | 0.00 | 1288.50 | 955.80 | 332.70 |
| 6 | 51.00 | 51.00 | 0.00 | 1288.50 | 956.10 | 332.40 |
| 7 | 63.30 | 63.30 | 0.00 | 1288.50 | 957.00 | 331.50 |
| 8 | 71.20 | 71.20 | 0.00 | 1288.50 | 957.80 | 330.70 |
| 9 | 65.20 | 65.20 | 0.00 | 1288.50 | 957.50 | 331.00 |
| 10 | 63.60 | 63.60 | 0.00 | 1288.50 | 957.00 | 331.50 |
| 11 | 54.10 | 54.10 | 0.00 | 1288.50 | 956.40 | 332.10 |
| 12 | 51.50 | 51.50 | 0.00 | 1288.50 | 956.30 | 332.20 |
| 13 | 45.60 | 45.60 | 0.00 | 1288.60 | 955.90 | 332.70 |
| 14 | 35.50 | 35.50 | 0.00 | 1288.60 | 955.90 | 332.70 |
| 15 | 39.30 | 39.30 | 0.00 | 1288.60 | 955.70 | 332.90 |
| 16 | 65.10 | 65.10 | 0.00 | 1288.60 | 957.70 | 330.90 |
| 17 | 86.30 | 86.30 | 0.00 | 1288.50 | 959.50 | 329.00 |
| 18 | 85.80 | 85.80 | 0.00 | 1288.50 | 959.90 | 328.60 |
| 19 | 81.30 | 81.30 | 0.00 | 1288.60 | 959.40 | 329.20 |
| 20 | 71.80 | 71.80 | 0.00 | 1288.60 | 958.60 | 330.00 |
| 21 | 62.50 | 62.50 | 0.00 | 1288.70 | 958.00 | 330.70 |
| 22 | 50.90 | 50.90 | 0.00 | 1288.70 | 957.10 | 331.60 |
| 23 | 42.60 | 42.60 | 0.00 | 1288.70 | 956.50 | 332.20 |
| 24 | 30.70 | 30.70 | 0.00 | 1288.70 | 955.60 | 333.10 |
|
| AVG | 55.05 | 55.05 | 0.00 | 1288.56 | 956.90 | 331.66 |
|
| MAX | 86.30 | 86.30 | 0.00 | 1288.70 | 959.90 | 333.40 |
| MIN | 30.70 | 30.70 | 0.00 | 1288.50 | 955.10 | 328.60 |