Grand Coulee Dam
Thursday May 7, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 81.60 | 81.60 | 0.00 | 1252.50 | 959.60 | 292.90 |
| 2 | 62.10 | 62.10 | 0.00 | 1252.50 | 957.80 | 294.70 |
| 3 | 55.70 | 55.70 | 0.00 | 1252.60 | 957.10 | 295.50 |
| 4 | 61.10 | 61.10 | 0.00 | 1252.60 | 956.70 | 295.90 |
| 5 | 64.00 | 64.00 | 0.00 | 1252.70 | 956.70 | 296.00 |
| 6 | 88.30 | 88.30 | 0.00 | 1252.80 | 958.40 | 294.40 |
| 7 | 97.30 | 97.30 | 0.00 | 1252.90 | 959.80 | 293.10 |
| 8 | 86.70 | 86.70 | 0.00 | 1253.00 | 959.10 | 293.90 |
| 9 | 78.40 | 78.40 | 0.00 | 1253.10 | 958.20 | 294.90 |
| 10 | 72.70 | 72.70 | 0.00 | 1253.20 | 957.60 | 295.60 |
| 11 | 78.30 | 78.30 | 0.00 | 1253.20 | 958.20 | 295.00 |
| 12 | 73.80 | 73.80 | 0.00 | 1253.20 | 958.00 | 295.20 |
| 13 | 93.80 | 93.80 | 0.00 | 1253.20 | 959.20 | 294.00 |
| 14 | 93.80 | 93.80 | 0.00 | 1253.20 | 959.80 | 293.40 |
| 15 | 90.30 | 90.30 | 0.00 | 1253.40 | 959.70 | 293.70 |
| 16 | 91.20 | 91.20 | 0.00 | 1253.50 | 959.60 | 293.90 |
| 17 | 100.60 | 100.60 | 0.00 | 1253.50 | 960.50 | 293.00 |
| 18 | 108.40 | 108.40 | 0.00 | 1253.60 | 961.10 | 292.50 |
| 19 | 138.40 | 138.40 | 0.00 | 1253.50 | 963.40 | 290.10 |
| 20 | 156.40 | 156.40 | 0.00 | 1253.40 | 965.60 | 287.80 |
| 21 | 160.80 | 160.80 | 0.00 | 1253.40 | 966.40 | 287.00 |
| 22 | 150.50 | 150.50 | 0.00 | 1253.50 | 965.90 | 287.60 |
| 23 | 134.60 | 134.60 | 0.00 | 1253.60 | 964.60 | 289.00 |
| 24 | 112.70 | 112.70 | 0.00 | 1253.70 | 962.60 | 291.10 |
|
| AVG | 97.15 | 97.15 | 0.00 | 1253.16 | 960.23 | 292.93 |
|
| MAX | 160.80 | 160.80 | 0.00 | 1253.70 | 966.40 | 296.00 |
| MIN | 55.70 | 55.70 | 0.00 | 1252.50 | 956.70 | 287.00 |