Grand Coulee Dam
Thursday April 9, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 89.50 | 89.50 | 0.00 | 1253.50 | 960.70 | 292.80 |
| 2 | 88.40 | 88.40 | 0.00 | 1253.40 | 960.30 | 293.10 |
| 3 | 91.30 | 91.30 | 0.00 | 1253.40 | 960.50 | 292.90 |
| 4 | 92.00 | 92.00 | 0.00 | 1253.40 | 960.60 | 292.80 |
| 5 | 110.20 | 110.20 | 0.00 | 1253.40 | 961.70 | 291.70 |
| 6 | 124.20 | 124.20 | 0.00 | 1253.40 | 963.10 | 290.30 |
| 7 | 125.70 | 125.70 | 0.00 | 1253.50 | 963.60 | 289.90 |
| 8 | 127.00 | 127.00 | 0.00 | 1253.50 | 963.80 | 289.70 |
| 9 | 99.20 | 99.20 | 0.00 | 1253.50 | 962.10 | 291.40 |
| 10 | 98.40 | 98.40 | 0.00 | 1253.50 | 961.60 | 291.90 |
| 11 | 78.50 | 78.50 | 0.00 | 1253.50 | 960.20 | 293.30 |
| 12 | 65.30 | 65.30 | 0.00 | 1253.60 | 958.90 | 294.70 |
| 13 | 50.50 | 50.50 | 0.00 | 1253.60 | 957.60 | 296.00 |
| 14 | 52.80 | 52.80 | 0.00 | 1253.60 | 957.70 | 295.90 |
| 15 | 51.60 | 51.60 | 0.00 | 1253.70 | 957.30 | 296.40 |
| 16 | 52.40 | 52.40 | 0.00 | 1253.70 | 957.00 | 296.70 |
| 17 | 58.50 | 58.50 | 0.00 | 1253.80 | 957.10 | 296.70 |
| 18 | 81.60 | 81.60 | 0.00 | 1253.80 | 958.40 | 295.40 |
| 19 | 133.50 | 133.50 | 0.00 | 1253.70 | 962.40 | 291.30 |
| 20 | 150.90 | 150.90 | 0.00 | 1253.70 | 964.90 | 288.80 |
| 21 | 135.10 | 135.10 | 0.00 | 1253.70 | 964.40 | 289.30 |
| 22 | 123.90 | 123.90 | 0.00 | 1253.80 | 963.40 | 290.40 |
| 23 | 113.20 | 113.20 | 0.00 | 1253.80 | 962.40 | 291.40 |
| 24 | 100.80 | 100.80 | 0.00 | 1253.80 | 961.40 | 292.40 |
|
| AVG | 95.60 | 95.60 | 0.00 | 1253.60 | 960.88 | 292.72 |
|
| MAX | 150.90 | 150.90 | 0.00 | 1253.80 | 964.90 | 296.70 |
| MIN | 50.50 | 50.50 | 0.00 | 1253.40 | 957.00 | 288.80 |