Chief Joseph Dam
Thursday March 19, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 98.20 | 98.20 | 0.00 | 953.90 | 782.40 | 171.50 | 954.00 | 782.40 |
| 2 | 98.60 | 98.60 | 0.00 | 953.90 | 782.50 | 171.40 | 953.90 | 782.40 |
| 3 | 92.10 | 92.10 | 0.00 | 953.80 | 782.10 | 171.70 | 953.90 | 782.00 |
| 4 | 101.00 | 101.00 | 0.00 | 953.60 | 782.80 | 170.80 | 953.70 | 782.40 |
| 5 | 111.70 | 111.70 | 0.00 | 953.10 | 783.30 | 169.80 | 953.40 | 782.90 |
| 6 | 123.80 | 123.80 | 0.00 | 953.00 | 783.90 | 169.10 | 953.10 | 783.60 |
| 7 | 134.60 | 134.60 | 0.00 | 952.70 | 784.90 | 167.80 | 952.70 | 784.20 |
| 8 | 134.70 | 134.70 | 0.00 | 952.60 | 784.40 | 168.20 | 952.50 | 784.40 |
| 9 | 125.30 | 125.30 | 0.00 | 953.10 | 783.80 | 169.30 | 952.90 | 784.10 |
| 10 | 111.80 | 111.80 | 0.00 | 953.40 | 783.30 | 170.10 | 953.30 | 783.50 |
| 11 | 93.20 | 93.20 | 0.00 | 953.50 | 782.40 | 171.10 | 953.40 | 782.60 |
| 12 | 88.40 | 88.40 | 0.00 | 953.50 | 782.40 | 171.10 | 953.50 | 782.30 |
| 13 | 98.10 | 98.10 | 0.00 | 953.30 | 782.50 | 170.80 | 953.30 | 782.60 |
| 14 | 93.70 | 93.70 | 0.00 | 953.50 | 782.00 | 171.50 | 953.40 | 782.30 |
| 15 | 91.10 | 91.10 | 0.00 | 953.40 | 782.10 | 171.30 | 953.50 | 782.00 |
| 16 | 94.40 | 94.40 | 0.00 | 953.20 | 782.40 | 170.80 | 953.40 | 782.00 |
| 17 | 114.00 | 114.00 | 0.00 | 952.90 | 783.00 | 169.90 | 953.10 | 782.80 |
| 18 | 138.10 | 138.10 | 0.00 | 952.60 | 784.40 | 168.20 | 952.70 | 784.10 |
| 19 | 143.30 | 143.30 | 0.00 | 952.60 | 784.50 | 168.10 | 952.60 | 784.40 |
| 20 | 142.10 | 142.10 | 0.00 | 953.00 | 784.70 | 168.30 | 952.80 | 784.50 |
| 21 | 140.10 | 140.10 | 0.00 | 953.20 | 785.00 | 168.20 | 953.10 | 784.60 |
| 22 | 141.80 | 141.80 | 0.00 | 953.40 | 785.00 | 168.40 | 953.40 | 784.90 |
| 23 | 139.30 | 139.30 | 0.00 | 953.70 | 784.10 | 169.60 | 953.50 | 784.80 |
| 24 | 117.90 | 117.90 | 0.00 | 953.90 | 784.00 | 169.90 | 953.80 | 783.60 |
|
| AVG | 115.30 | 115.30 | 0.00 | 953.28 | 783.41 | 169.87 | 953.29 | 783.31 |
|
| MAX | 143.30 | 143.30 | 0.00 | 953.90 | 785.00 | 171.70 | 954.00 | 784.90 |
| MIN | 88.40 | 88.40 | 0.00 | 952.60 | 782.00 | 167.80 | 952.50 | 782.00 |