Grand Coulee Dam
Sunday October 19, 2025
Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
1 | 69.10 | 69.10 | 0.00 | 1285.60 | 957.70 | 327.90 |
2 | 55.50 | 55.50 | 0.00 | 1285.60 | 956.90 | 328.70 |
3 | 43.50 | 43.50 | 0.00 | 1285.60 | 955.80 | 329.80 |
4 | 36.10 | 36.10 | 0.00 | 1285.70 | 955.30 | 330.40 |
5 | 35.90 | 35.90 | 0.00 | 1285.70 | 955.70 | 330.00 |
6 | 44.00 | 44.00 | 0.00 | 1285.60 | 956.20 | 329.40 |
7 | 51.90 | 51.90 | 0.00 | 1285.50 | 956.70 | 328.80 |
8 | 60.70 | 60.70 | 0.00 | 1285.50 | 957.20 | 328.30 |
9 | 47.80 | 47.80 | 0.00 | 1285.60 | 956.30 | 329.30 |
10 | 46.10 | 46.10 | 0.00 | 1285.70 | 955.90 | 329.80 |
11 | 46.40 | 46.40 | 0.00 | 1285.70 | 956.20 | 329.50 |
12 | 42.40 | 42.40 | 0.00 | 1285.70 | 955.90 | 329.80 |
13 | 40.40 | 40.40 | 0.00 | 1285.70 | 955.50 | 330.20 |
14 | 37.30 | 37.30 | 0.00 | 1285.60 | 955.60 | 330.00 |
15 | 39.30 | 39.30 | 0.00 | 1285.60 | 955.70 | 329.90 |
16 | 39.00 | 39.00 | 0.00 | 1285.70 | 955.60 | 330.10 |
17 | 41.20 | 41.20 | 0.00 | 1285.80 | 955.70 | 330.10 |
18 | 51.30 | 51.30 | 0.00 | 1285.70 | 956.60 | 329.10 |
19 | 58.00 | 58.00 | 0.00 | 1285.70 | 957.10 | 328.60 |
20 | 56.20 | 56.20 | 0.00 | 1285.70 | 956.80 | 328.90 |
21 | 52.20 | 52.20 | 0.00 | 1285.70 | 956.50 | 329.20 |
22 | 43.50 | 43.50 | 0.00 | 1285.80 | 956.00 | 329.80 |
23 | 41.20 | 41.20 | 0.00 | 1285.90 | 955.60 | 330.30 |
24 | 37.80 | 37.80 | 0.00 | 1286.00 | 955.30 | 330.70 |
|
AVG | 46.53 | 46.53 | 0.00 | 1285.68 | 956.16 | 329.53 |
|
MAX | 69.10 | 69.10 | 0.00 | 1286.00 | 957.70 | 330.70 |
MIN | 35.90 | 35.90 | 0.00 | 1285.50 | 955.30 | 327.90 |