Grand Coulee Dam
Sunday April 12, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 126.30 | 126.30 | 0.00 | 1253.60 | 963.20 | 290.40 |
| 2 | 119.70 | 119.70 | 0.00 | 1253.40 | 962.60 | 290.80 |
| 3 | 112.70 | 112.70 | 0.00 | 1253.40 | 962.00 | 291.40 |
| 4 | 111.50 | 111.50 | 0.00 | 1253.40 | 961.70 | 291.70 |
| 5 | 115.10 | 115.10 | 0.00 | 1253.40 | 961.90 | 291.50 |
| 6 | 128.00 | 128.00 | 0.00 | 1253.40 | 962.90 | 290.50 |
| 7 | 145.00 | 145.00 | 0.00 | 1253.40 | 964.40 | 289.00 |
| 8 | 141.10 | 141.10 | 0.00 | 1253.30 | 964.70 | 288.60 |
| 9 | 142.60 | 142.60 | 0.00 | 1253.20 | 964.80 | 288.40 |
| 10 | 143.30 | 143.30 | 0.00 | 1253.20 | 964.90 | 288.30 |
| 11 | 141.60 | 141.60 | 0.00 | 1253.20 | 964.90 | 288.30 |
| 12 | 137.40 | 137.40 | 0.00 | 1253.20 | 964.50 | 288.70 |
| 13 | 132.00 | 132.00 | 0.00 | 1253.10 | 964.00 | 289.10 |
| 14 | 121.90 | 121.90 | 0.00 | 1253.10 | 963.30 | 289.80 |
| 15 | 119.20 | 119.20 | 0.00 | 1253.10 | 962.90 | 290.20 |
| 16 | 116.50 | 116.50 | 0.00 | 1253.00 | 962.70 | 290.30 |
| 17 | 114.20 | 114.20 | 0.00 | 1253.00 | 962.40 | 290.60 |
| 18 | 119.70 | 119.70 | 0.00 | 1253.00 | 962.60 | 290.40 |
| 19 | 147.50 | 147.50 | 0.00 | 1252.90 | 964.60 | 288.30 |
| 20 | 151.00 | 151.00 | 0.00 | 1252.90 | 965.60 | 287.30 |
| 21 | 154.50 | 154.50 | 0.00 | 1252.80 | 966.10 | 286.70 |
| 22 | 141.20 | 141.20 | 0.00 | 1252.90 | 965.30 | 287.60 |
| 23 | 118.30 | 118.30 | 0.00 | 1253.00 | 963.50 | 289.50 |
| 24 | 104.90 | 104.90 | 0.00 | 1253.00 | 962.10 | 290.90 |
|
| AVG | 129.38 | 129.38 | 0.00 | 1253.16 | 963.65 | 289.51 |
|
| MAX | 154.50 | 154.50 | 0.00 | 1253.60 | 966.10 | 291.70 |
| MIN | 104.90 | 104.90 | 0.00 | 1252.80 | 961.70 | 286.70 |