Grand Coulee Dam
Friday May 8, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 123.50 | 123.50 | 0.00 | 1253.70 | 963.00 | 290.70 |
| 2 | 115.60 | 115.60 | 0.00 | 1253.60 | 962.90 | 290.70 |
| 3 | 111.10 | 111.10 | 0.00 | 1253.60 | 962.30 | 291.30 |
| 4 | 112.70 | 112.70 | 0.00 | 1253.60 | 962.20 | 291.40 |
| 5 | 110.50 | 110.50 | 0.00 | 1253.70 | 962.10 | 291.60 |
| 6 | 122.50 | 122.50 | 0.00 | 1253.80 | 963.00 | 290.80 |
| 7 | 109.10 | 109.10 | 0.00 | 1253.80 | 962.50 | 291.30 |
| 8 | 120.70 | 120.70 | 0.00 | 1253.80 | 962.90 | 290.90 |
| 9 | 94.30 | 94.30 | 0.00 | 1253.80 | 961.30 | 292.50 |
| 10 | 95.20 | 95.20 | 0.00 | 1253.80 | 960.70 | 293.10 |
| 11 | 89.20 | 89.20 | 0.00 | 1253.80 | 960.10 | 293.70 |
| 12 | 93.30 | 93.30 | 0.00 | 1253.90 | 960.30 | 293.60 |
| 13 | 90.20 | 90.20 | 0.00 | 1254.00 | 960.10 | 293.90 |
| 14 | 74.00 | 74.00 | 0.00 | 1254.00 | 958.80 | 295.20 |
| 15 | 68.30 | 68.30 | 0.00 | 1254.10 | 957.90 | 296.20 |
| 16 | 66.70 | 66.70 | 0.00 | 1254.20 | 957.70 | 296.50 |
| 17 | 73.70 | 73.70 | 0.00 | 1254.20 | 958.10 | 296.10 |
| 18 | 91.30 | 91.30 | 0.00 | 1254.20 | 959.10 | 295.10 |
| 19 | 133.90 | 133.90 | 0.00 | 1254.20 | 962.70 | 291.50 |
| 20 | 139.70 | 139.70 | 0.00 | 1254.20 | 964.00 | 290.20 |
| 21 | 133.00 | 133.00 | 0.00 | 1254.30 | 963.60 | 290.70 |
| 22 | 130.30 | 130.30 | 0.00 | 1254.30 | 963.30 | 291.00 |
| 23 | 134.80 | 134.80 | 0.00 | 1254.30 | 963.50 | 290.80 |
| 24 | 123.30 | 123.30 | 0.00 | 1254.40 | 963.10 | 291.30 |
|
| AVG | 106.54 | 106.54 | 0.00 | 1253.97 | 961.47 | 292.50 |
|
| MAX | 139.70 | 139.70 | 0.00 | 1254.40 | 964.00 | 296.50 |
| MIN | 66.70 | 66.70 | 0.00 | 1253.60 | 957.70 | 290.20 |