Grand Coulee Dam
Tuesday June 23, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 122.90 | 122.90 | 0.00 | 1285.10 | 963.20 | 321.90 |
| 2 | 110.70 | 110.70 | 0.00 | 1285.10 | 962.40 | 322.70 |
| 3 | 104.80 | 104.80 | 0.00 | 1285.10 | 961.70 | 323.40 |
| 4 | 99.40 | 99.40 | 0.00 | 1285.10 | 961.20 | 323.90 |
| 5 | 101.70 | 101.70 | 0.00 | 1285.20 | 961.10 | 324.10 |
| 6 | 109.90 | 109.90 | 0.00 | 1285.20 | 961.70 | 323.50 |
| 7 | 102.90 | 102.90 | 0.00 | 1285.20 | 961.40 | 323.80 |
| 8 | 95.80 | 95.80 | 0.00 | 1285.30 | 960.50 | 324.80 |
| 9 | 91.90 | 91.90 | 0.00 | 1285.30 | 960.00 | 325.30 |
| 10 | 94.00 | 94.00 | 0.00 | 1285.30 | 960.10 | 325.20 |
| 11 | 108.40 | 108.40 | 0.00 | 1285.30 | 960.90 | 324.40 |
| 12 | 116.80 | 116.80 | 0.00 | 1285.30 | 961.60 | 323.70 |
| 13 | 125.00 | 125.00 | 0.00 | 1285.30 | 962.40 | 322.90 |
| 14 | 139.70 | 139.70 | 0.00 | 1285.30 | 963.60 | 321.70 |
| 15 | 147.10 | 147.10 | 0.00 | 1285.30 | 964.50 | 320.80 |
| 16 | | | | | | |
| 17 | | | | | | |
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| 24 | | | | | | |
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| AVG | 111.40 | 111.40 | 0.00 | 1285.23 | 961.75 | 323.47 |
|
| MAX | 147.10 | 147.10 | 0.00 | 1285.30 | 964.50 | 325.30 |
| MIN | 91.90 | 91.90 | 0.00 | 1285.10 | 960.00 | 320.80 |