Chief Joseph Dam
Thursday February 5, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
| 1 | 110.60 | 110.60 | 0.00 | 952.70 | 779.00 | 173.70 | 952.60 | 779.20 |
| 2 | 107.80 | 107.80 | 0.00 | 952.20 | 779.10 | 173.10 | 952.70 | 779.00 |
| 3 | 96.40 | 96.40 | 0.00 | 952.90 | 778.50 | 174.40 | 952.80 | 778.60 |
| 4 | 98.00 | 98.00 | 0.00 | 952.80 | 779.00 | 173.80 | 952.80 | 778.70 |
| 5 | 103.40 | 103.40 | 0.00 | 952.60 | 779.80 | 172.80 | 952.70 | 779.30 |
| 6 | 132.40 | 132.40 | 0.00 | 952.20 | 781.70 | 170.50 | 952.30 | 781.30 |
| 7 | 131.60 | 131.60 | 0.00 | 952.20 | 781.60 | 170.60 | 952.20 | 781.50 |
| 8 | 130.60 | 130.60 | 0.00 | 952.30 | 781.30 | 171.00 | 952.30 | 781.30 |
| 9 | 134.30 | 134.30 | 0.00 | 952.50 | 781.40 | 171.10 | 952.30 | 781.60 |
| 10 | 133.10 | 133.10 | 0.00 | 952.70 | 781.70 | 171.00 | 952.60 | 781.70 |
| 11 | 125.00 | 125.00 | 0.00 | 952.60 | 781.40 | 171.20 | 952.70 | 781.50 |
| 12 | 117.10 | 117.10 | 0.00 | 952.50 | 781.00 | 171.50 | 952.60 | 781.20 |
| 13 | 97.90 | 97.90 | 0.00 | 952.50 | 780.30 | 172.20 | 952.50 | 780.40 |
| 14 | 87.60 | 87.60 | 0.00 | 952.50 | 780.30 | 172.20 | 952.50 | 780.10 |
| 15 | 89.90 | 89.90 | 0.00 | 952.40 | 780.70 | 171.70 | 952.40 | 780.40 |
| 16 | 95.90 | 95.90 | 0.00 | 952.40 | 781.20 | 171.20 | 952.40 | 780.90 |
| 17 | 108.60 | 108.60 | 0.00 | 952.30 | 781.40 | 170.90 | 952.30 | 781.50 |
| 18 | 108.60 | 108.60 | 0.00 | 952.40 | 781.40 | 171.00 | 952.40 | 781.20 |
| 19 | 115.70 | 115.70 | 0.00 | 952.60 | 781.10 | 171.50 | 952.50 | 781.30 |
| 20 | 113.70 | 113.70 | 0.00 | 952.80 | 780.50 | 172.30 | 952.60 | 781.00 |
| 21 | 99.60 | 99.60 | 0.00 | 953.30 | 779.60 | 173.70 | 953.10 | 779.80 |
| 22 | 97.10 | 97.10 | 0.00 | 953.30 | 779.80 | 173.50 | 953.40 | 779.40 |
| 23 | 125.30 | 125.30 | 0.00 | 953.10 | 781.40 | 171.70 | 953.20 | 781.20 |
| 24 | 126.20 | 126.20 | 0.00 | 953.00 | 781.40 | 171.60 | 953.10 | 781.30 |
|
| AVG | 111.93 | 111.93 | 0.00 | 952.62 | 780.61 | 172.01 | 952.62 | 780.56 |
|
| MAX | 134.30 | 134.30 | 0.00 | 953.30 | 781.70 | 174.40 | 953.40 | 781.70 |
| MIN | 87.60 | 87.60 | 0.00 | 952.20 | 778.50 | 170.50 | 952.20 | 778.60 |