Grand Coulee Dam
Saturday May 30, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 129.10 | 129.10 | 0.00 | 1271.10 | 963.00 | 308.10 |
| 2 | 123.70 | 123.70 | 0.00 | 1271.10 | 962.20 | 308.90 |
| 3 | 114.90 | 114.90 | 0.00 | 1271.20 | 961.40 | 309.80 |
| 4 | 118.90 | 118.90 | 0.00 | 1271.30 | 961.40 | 309.90 |
| 5 | 110.70 | 110.70 | 0.00 | 1271.30 | 960.90 | 310.40 |
| 6 | 116.10 | 116.10 | 0.00 | 1271.40 | 961.10 | 310.30 |
| 7 | 105.60 | 105.60 | 0.00 | 1271.40 | 960.20 | 311.20 |
| 8 | 103.90 | 103.90 | 0.00 | 1271.60 | 959.50 | 312.10 |
| 9 | 119.00 | 119.00 | 0.00 | 1271.60 | 960.70 | 310.90 |
| 10 | 110.50 | 110.50 | 0.00 | 1271.70 | 960.90 | 310.80 |
| 11 | 110.30 | 110.30 | 0.00 | 1271.80 | 960.70 | 311.10 |
| 12 | 102.60 | 102.60 | 0.00 | 1271.90 | 960.40 | 311.50 |
| 13 | 99.00 | 99.00 | 0.00 | 1272.00 | 960.10 | 311.90 |
| 14 | 97.60 | 97.60 | 0.00 | 1272.10 | 960.00 | 312.10 |
| 15 | 94.00 | 94.00 | 0.00 | 1272.20 | 959.60 | 312.60 |
| 16 | 94.80 | 94.80 | 0.00 | 1272.30 | 959.50 | 312.80 |
| 17 | 98.10 | 98.10 | 0.00 | 1272.40 | 959.70 | 312.70 |
| 18 | 99.00 | 99.00 | 0.00 | 1272.40 | 959.80 | 312.60 |
| 19 | 104.60 | 104.60 | 0.00 | 1272.50 | 960.30 | 312.20 |
| 20 | 126.60 | 126.60 | 0.00 | 1272.50 | 962.30 | 310.20 |
| 21 | 130.20 | 130.20 | 0.00 | 1272.60 | 963.10 | 309.50 |
| 22 | 127.80 | 127.80 | 0.00 | 1272.70 | 962.80 | 309.90 |
| 23 | 148.70 | 148.70 | 0.00 | 1272.70 | 964.20 | 308.50 |
| 24 | 146.30 | 146.30 | 0.00 | 1272.80 | 964.70 | 308.10 |
|
| AVG | 113.83 | 113.83 | 0.00 | 1271.94 | 961.19 | 310.75 |
|
| MAX | 148.70 | 148.70 | 0.00 | 1272.80 | 964.70 | 312.80 |
| MIN | 94.00 | 94.00 | 0.00 | 1271.10 | 959.50 | 308.10 |