Grand Coulee Dam
Friday October 30, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 45.60 | 45.60 | 0.00 | 1288.60 | 956.10 | 332.50 |
| 2 | 40.90 | 40.90 | 0.00 | 1288.60 | 955.90 | 332.70 |
| 3 | 40.60 | 40.60 | 0.00 | 1288.70 | 956.00 | 332.70 |
| 4 | 40.60 | 40.60 | 0.00 | 1288.70 | 956.00 | 332.70 |
| 5 | 45.40 | 45.40 | 0.00 | 1288.70 | 956.30 | 332.40 |
| 6 | 65.40 | 65.40 | 0.00 | 1288.60 | 957.70 | 330.90 |
| 7 | 74.30 | 74.30 | 0.00 | 1288.60 | 958.60 | 330.00 |
| 8 | 82.70 | 82.70 | 0.00 | 1288.60 | 959.00 | 329.60 |
| 9 | 85.60 | 85.60 | 0.00 | 1288.60 | 959.30 | 329.30 |
| 10 | 78.50 | 78.50 | 0.00 | 1288.60 | 959.00 | 329.60 |
| 11 | 74.20 | 74.20 | 0.00 | 1288.60 | 958.60 | 330.00 |
| 12 | 73.40 | 73.40 | 0.00 | 1288.60 | 958.60 | 330.00 |
| 13 | 69.30 | 69.30 | 0.00 | 1288.60 | 958.40 | 330.20 |
| 14 | 76.70 | 76.70 | 0.00 | 1288.50 | 958.80 | 329.70 |
| 15 | 63.30 | 63.30 | 0.00 | 1288.50 | 958.10 | 330.40 |
| 16 | 64.40 | 64.40 | 0.00 | 1288.50 | 957.90 | 330.60 |
| 17 | 63.20 | 63.20 | 0.00 | 1288.50 | 957.80 | 330.70 |
| 18 | 66.90 | 66.90 | 0.00 | 1288.50 | 958.20 | 330.30 |
| 19 | 69.50 | 69.50 | 0.00 | 1288.50 | 958.30 | 330.20 |
| 20 | 74.90 | 74.90 | 0.00 | 1288.50 | 958.60 | 329.90 |
| 21 | 69.10 | 69.10 | 0.00 | 1288.50 | 958.40 | 330.10 |
| 22 | 62.80 | 62.80 | 0.00 | 1288.50 | 957.80 | 330.70 |
| 23 | 66.20 | 66.20 | 0.00 | 1288.50 | 957.80 | 330.70 |
| 24 | 56.20 | 56.20 | 0.00 | 1288.50 | 957.10 | 331.40 |
|
| AVG | 64.57 | 64.57 | 0.00 | 1288.57 | 957.85 | 330.72 |
|
| MAX | 85.60 | 85.60 | 0.00 | 1288.70 | 959.30 | 332.70 |
| MIN | 40.60 | 40.60 | 0.00 | 1288.50 | 955.90 | 329.30 |