Chief Joseph Dam
Friday January 30, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 143.20 | 143.20 | 0.00 | 953.60 | 782.90 | 170.70 | 953.60 | 782.90 |
| 2 | 143.10 | 143.10 | 0.00 | 953.50 | 783.00 | 170.50 | 953.50 | 782.90 |
| 3 | 143.60 | 143.60 | 0.00 | 953.30 | 783.10 | 170.20 | 953.40 | 783.10 |
| 4 | 144.20 | 144.20 | 0.00 | 953.20 | 783.20 | 170.00 | 953.20 | 783.20 |
| 5 | 143.70 | 143.70 | 0.00 | 953.10 | 783.20 | 169.90 | 953.10 | 783.30 |
| 6 | 145.80 | 145.80 | 0.00 | 952.90 | 783.40 | 169.50 | 953.00 | 783.40 |
| 7 | 145.60 | 145.60 | 0.00 | 953.00 | 783.50 | 169.50 | 952.90 | 783.30 |
| 8 | 145.80 | 145.80 | 0.00 | 953.30 | 782.90 | 170.40 | 953.10 | 783.20 |
| 9 | 140.10 | 140.10 | 0.00 | 953.60 | 782.70 | 170.90 | 953.40 | 782.90 |
| 10 | 137.60 | 137.60 | 0.00 | 953.80 | 782.60 | 171.20 | 953.60 | 782.80 |
| 11 | 139.00 | 139.00 | 0.00 | 953.40 | 782.90 | 170.50 | 953.60 | 782.90 |
| 12 | 140.20 | 140.20 | 0.00 | 953.20 | 782.90 | 170.30 | 953.40 | 783.00 |
| 13 | 132.50 | 132.50 | 0.00 | 953.00 | 782.50 | 170.50 | 953.20 | 782.60 |
| 14 | 136.70 | 136.70 | 0.00 | 952.70 | 782.70 | 170.00 | 952.90 | 782.70 |
| 15 | 126.00 | 126.00 | 0.00 | 952.60 | 782.30 | 170.30 | 952.70 | 782.20 |
| 16 | 123.60 | 123.60 | 0.00 | 952.30 | 782.70 | 169.60 | 952.50 | 782.00 |
| 17 | 129.60 | 129.60 | 0.00 | 951.70 | 782.70 | 169.00 | 952.10 | 782.50 |
| 18 | 144.90 | 144.90 | 0.00 | 951.90 | 782.90 | 169.00 | 951.70 | 783.10 |
| 19 | 144.70 | 144.70 | 0.00 | 952.20 | 783.00 | 169.20 | 952.10 | 783.00 |
| 20 | 143.40 | 143.40 | 0.00 | 952.30 | 782.90 | 169.40 | 952.30 | 783.00 |
| 21 | 137.70 | 137.70 | 0.00 | 952.60 | 782.50 | 170.10 | 952.50 | 782.70 |
| 22 | 138.20 | 138.20 | 0.00 | 952.70 | 782.30 | 170.40 | 952.60 | 782.70 |
| 23 | 137.50 | 137.50 | 0.00 | 952.70 | 782.70 | 170.00 | 952.70 | 782.60 |
| 24 | 133.50 | 133.50 | 0.00 | 952.60 | 782.40 | 170.20 | 952.70 | 782.60 |
|
| AVG | 139.17 | 139.17 | 0.00 | 952.88 | 782.83 | 170.05 | 952.91 | 782.86 |
|
| MAX | 145.80 | 145.80 | 0.00 | 953.80 | 783.50 | 171.20 | 953.60 | 783.40 |
| MIN | 123.60 | 123.60 | 0.00 | 951.70 | 782.30 | 169.00 | 951.70 | 782.00 |