Chief Joseph Dam
Sunday October 19, 2025
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
| 1 | 61.50 | 61.50 | 0.00 | 953.10 | 778.10 | 175.00 | 952.90 | 778.40 |
| 2 | 53.10 | 53.10 | 0.00 | 953.20 | 777.80 | 175.40 | 953.10 | 777.90 |
| 3 | 40.70 | 40.70 | 0.00 | 953.40 | 778.00 | 175.40 | 953.30 | 777.80 |
| 4 | 30.30 | 30.30 | 0.00 | 953.30 | 777.70 | 175.60 | 953.30 | 777.40 |
| 5 | 35.20 | 35.20 | 0.00 | 953.10 | 777.90 | 175.20 | 953.20 | 778.10 |
| 6 | 47.50 | 47.50 | 0.00 | 953.00 | 778.60 | 174.40 | 953.00 | 778.30 |
| 7 | 56.30 | 56.30 | 0.00 | 953.00 | 778.90 | 174.10 | 953.00 | 778.50 |
| 8 | 61.00 | 61.00 | 0.00 | 953.00 | 788.10 | 164.90 | 953.00 | 788.50 |
| 9 | 49.60 | 49.60 | 0.00 | 953.40 | 777.90 | 175.50 | 953.20 | 778.00 |
| 10 | 47.70 | 47.70 | 0.00 | 953.10 | 778.40 | 174.70 | 953.20 | 778.10 |
| 11 | 52.90 | 52.90 | 0.00 | 953.00 | 777.30 | 175.70 | 953.00 | 777.90 |
| 12 | 41.50 | 41.50 | 0.00 | 953.30 | 777.90 | 175.40 | 953.10 | 777.70 |
| 13 | 40.80 | 40.80 | 0.00 | 953.20 | 777.80 | 175.40 | 953.20 | 777.70 |
| 14 | 39.00 | 39.00 | 0.00 | 952.90 | 778.00 | 174.90 | 953.00 | 777.80 |
| 15 | 39.00 | 39.00 | 0.00 | 953.10 | 777.90 | 175.20 | 953.00 | 778.00 |
| 16 | 38.20 | 38.20 | 0.00 | 953.10 | 778.30 | 174.80 | 953.10 | 778.10 |
| 17 | 39.70 | 39.70 | 0.00 | 952.90 | 779.00 | 173.90 | 953.00 | 778.40 |
| 18 | 52.60 | 52.60 | 0.00 | 952.80 | 778.70 | 174.10 | 952.90 | 778.90 |
| 19 | 56.40 | 56.40 | 0.00 | 953.00 | 778.70 | 174.30 | 952.90 | 778.90 |
| 20 | 56.80 | 56.80 | 0.00 | 953.10 | 778.90 | 174.20 | 953.00 | 779.00 |
| 21 | 57.00 | 57.00 | 0.00 | 953.00 | 779.20 | 173.80 | 953.00 | 779.00 |
| 22 | 58.70 | 58.70 | 0.00 | 952.90 | 779.40 | 173.50 | 952.90 | 779.40 |
| 23 | 54.40 | 54.40 | 0.00 | 952.90 | 779.10 | 173.80 | 952.90 | 779.00 |
| 24 | 48.40 | 48.40 | 0.00 | 952.70 | 778.90 | 173.80 | 952.80 | 779.00 |
|
| AVG | 48.26 | 48.26 | 0.00 | 953.06 | 778.77 | 174.29 | 953.04 | 778.74 |
|
| MAX | 61.50 | 61.50 | 0.00 | 953.40 | 788.10 | 175.70 | 953.30 | 788.50 |
| MIN | 30.30 | 30.30 | 0.00 | 952.70 | 777.30 | 164.90 | 952.80 | 777.40 |