Grand Coulee Dam
Saturday May 2, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 172.40 | 172.40 | 0.00 | 1252.00 | 968.80 | 283.20 |
| 2 | 166.30 | 166.30 | 0.00 | 1251.90 | 968.40 | 283.50 |
| 3 | 159.10 | 159.10 | 0.00 | 1251.80 | 967.90 | 283.90 |
| 4 | 159.60 | 159.60 | 0.00 | 1251.70 | 967.60 | 284.10 |
| 5 | 146.10 | 146.10 | 0.00 | 1251.70 | 966.70 | 285.00 |
| 6 | 155.70 | 155.70 | 0.00 | 1251.60 | 966.80 | 284.80 |
| 7 | 137.40 | 137.40 | 0.00 | 1251.60 | 966.00 | 285.60 |
| 8 | 101.10 | 101.10 | 0.00 | 1251.70 | 963.10 | 288.60 |
| 9 | 87.80 | 87.80 | 0.00 | 1251.70 | 961.30 | 290.40 |
| 10 | 87.10 | 87.10 | 0.00 | 1251.60 | 960.70 | 290.90 |
| 11 | 85.80 | 85.80 | 0.00 | 1251.70 | 960.40 | 291.30 |
| 12 | 80.20 | 80.20 | 0.00 | 1251.60 | 959.60 | 292.00 |
| 13 | 76.00 | 76.00 | 0.00 | 1251.60 | 958.60 | 293.00 |
| 14 | 75.40 | 75.40 | 0.00 | 1251.80 | 958.10 | 293.70 |
| 15 | 72.00 | 72.00 | 0.00 | 1251.90 | 957.60 | 294.30 |
| 16 | 84.80 | 84.80 | 0.00 | 1251.90 | 958.10 | 293.80 |
| 17 | 114.50 | 114.50 | 0.00 | 1251.80 | 960.40 | 291.40 |
| 18 | 135.00 | 135.00 | 0.00 | 1251.80 | 962.70 | 289.10 |
| 19 | 167.40 | 167.40 | 0.00 | 1251.70 | 965.70 | 286.00 |
| 20 | 178.70 | 178.70 | 0.00 | 1251.60 | 967.30 | 284.30 |
| 21 | 170.00 | 170.00 | 0.00 | 1251.70 | 967.40 | 284.30 |
| 22 | 177.50 | 177.50 | 0.00 | 1251.70 | 967.70 | 284.00 |
| 23 | 179.90 | 179.90 | 0.00 | 1251.60 | 968.10 | 283.50 |
| 24 | 160.10 | 160.10 | 0.00 | 1251.60 | 967.00 | 284.60 |
|
| AVG | 130.41 | 130.41 | 0.00 | 1251.72 | 964.00 | 287.72 |
|
| MAX | 179.90 | 179.90 | 0.00 | 1252.00 | 968.80 | 294.30 |
| MIN | 72.00 | 72.00 | 0.00 | 1251.60 | 957.60 | 283.20 |