Grand Coulee Dam
Wednesday November 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 63.70 | 63.70 | 0.00 | 1289.00 | 957.40 | 331.60 |
| 2 | 48.10 | 48.10 | 0.00 | 1289.10 | 956.40 | 332.70 |
| 3 | 48.80 | 48.80 | 0.00 | 1289.10 | 955.90 | 333.20 |
| 4 | 48.30 | 48.30 | 0.00 | 1289.10 | 956.30 | 332.80 |
| 5 | 71.70 | 71.70 | 0.00 | 1289.00 | 957.90 | 331.10 |
| 6 | 105.20 | 105.20 | 0.00 | 1289.00 | 960.40 | 328.60 |
| 7 | 132.10 | 132.10 | 0.00 | 1288.90 | 963.00 | 325.90 |
| 8 | 137.20 | 137.20 | 0.00 | 1288.90 | 963.40 | 325.50 |
| 9 | 122.90 | 122.90 | 0.00 | 1289.00 | 963.20 | 325.80 |
| 10 | 115.60 | 115.60 | 0.00 | 1289.00 | 962.30 | 326.70 |
| 11 | 92.20 | 92.20 | 0.00 | 1289.00 | 960.40 | 328.60 |
| 12 | 93.00 | 93.00 | 0.00 | 1288.90 | 960.10 | 328.80 |
| 13 | 86.20 | 86.20 | 0.00 | 1288.80 | 959.90 | 328.90 |
| 14 | 80.50 | 80.50 | 0.00 | 1288.80 | 959.60 | 329.20 |
| 15 | 83.60 | 83.60 | 0.00 | 1288.70 | 959.60 | 329.10 |
| 16 | 109.10 | 109.10 | 0.00 | 1288.70 | 961.30 | 327.40 |
| 17 | 126.10 | 126.10 | 0.00 | 1288.70 | 963.20 | 325.50 |
| 18 | 143.80 | 143.80 | 0.00 | 1288.70 | 964.50 | 324.20 |
| 19 | 137.40 | 137.40 | 0.00 | 1288.60 | 964.50 | 324.10 |
| 20 | 123.20 | 123.20 | 0.00 | 1288.60 | 963.40 | 325.20 |
| 21 | 109.80 | 109.80 | 0.00 | 1288.60 | 962.20 | 326.40 |
| 22 | 99.90 | 99.90 | 0.00 | 1288.60 | 961.10 | 327.50 |
| 23 | 96.50 | 96.50 | 0.00 | 1288.50 | 960.70 | 327.80 |
| 24 | 82.90 | 82.90 | 0.00 | 1288.50 | 959.80 | 328.70 |
|
| AVG | 98.24 | 98.24 | 0.00 | 1288.82 | 960.69 | 328.14 |
|
| MAX | 143.80 | 143.80 | 0.00 | 1289.10 | 964.50 | 333.20 |
| MIN | 48.10 | 48.10 | 0.00 | 1288.50 | 955.90 | 324.10 |