Grand Coulee Dam
Monday June 1, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 157.10 | 157.10 | 0.00 | 1274.40 | 966.50 | 307.90 |
| 2 | 153.90 | 153.90 | 0.00 | 1274.40 | 966.10 | 308.30 |
| 3 | 149.50 | 149.50 | 0.00 | 1274.40 | 965.60 | 308.80 |
| 4 | 154.80 | 154.80 | 0.00 | 1274.40 | 965.80 | 308.60 |
| 5 | 158.80 | 158.80 | 0.00 | 1274.40 | 966.20 | 308.20 |
| 6 | 165.80 | 165.80 | 0.00 | 1274.40 | 966.80 | 307.60 |
| 7 | 149.00 | 149.00 | 0.00 | 1274.50 | 966.10 | 308.40 |
| 8 | 152.70 | 152.70 | 0.00 | 1274.60 | 965.70 | 308.90 |
| 9 | 152.10 | 152.10 | 0.00 | 1274.50 | 965.90 | 308.60 |
| 10 | 146.60 | 146.60 | 0.00 | 1274.60 | 965.40 | 309.20 |
| 11 | 169.30 | 169.30 | 0.00 | 1274.60 | 966.80 | 307.80 |
| 12 | 170.20 | 170.20 | 0.00 | 1274.60 | 967.40 | 307.20 |
| 13 | 175.60 | 175.60 | 0.00 | 1274.70 | 967.80 | 306.90 |
| 14 | 183.30 | 183.30 | 0.00 | 1274.70 | 968.50 | 306.20 |
| 15 | 184.70 | 184.70 | 0.00 | 1274.70 | 968.90 | 305.80 |
| 16 | 179.30 | 179.30 | 0.00 | 1274.70 | 968.70 | 306.00 |
| 17 | 174.10 | 174.10 | 0.00 | 1274.70 | 968.30 | 306.40 |
| 18 | 163.40 | 163.40 | 0.00 | 1274.70 | 967.60 | 307.10 |
| 19 | 168.80 | 168.80 | 0.00 | 1274.70 | 967.80 | 306.90 |
| 20 | 176.40 | 176.40 | 0.00 | 1274.60 | 968.40 | 306.20 |
| 21 | 172.90 | 172.90 | 0.00 | 1274.60 | 968.40 | 306.20 |
| 22 | 175.40 | 175.40 | 0.00 | 1274.60 | 968.50 | 306.10 |
| 23 | 179.40 | 179.40 | 0.00 | 1274.60 | 968.80 | 305.80 |
| 24 | 182.60 | 182.60 | 0.00 | 1274.70 | 969.10 | 305.60 |
|
| AVG | 166.49 | 166.49 | 0.00 | 1274.58 | 967.30 | 307.28 |
|
| MAX | 184.70 | 184.70 | 0.00 | 1274.70 | 969.10 | 309.20 |
| MIN | 146.60 | 146.60 | 0.00 | 1274.40 | 965.40 | 305.60 |