Chief Joseph Dam
Thursday November 5, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
| 1 | 117.70 | 117.70 | 0.00 | 953.30 | 781.20 | 172.10 | 953.40 | 781.30 |
| 2 | 101.50 | 101.50 | 0.00 | 953.50 | 780.10 | 173.40 | 953.30 | 780.30 |
| 3 | 82.60 | 82.60 | 0.00 | 953.60 | 779.40 | 174.20 | 953.70 | 779.30 |
| 4 | 79.70 | 79.70 | 0.00 | 953.60 | 778.90 | 174.70 | 953.60 | 779.30 |
| 5 | 65.40 | 65.40 | 0.00 | 953.70 | 778.70 | 175.00 | 953.70 | 778.50 |
| 6 | 82.40 | 82.40 | 0.00 | 953.40 | 779.20 | 174.20 | 953.60 | 779.20 |
| 7 | 87.30 | 87.30 | 0.00 | 953.40 | 779.60 | 173.80 | 953.30 | 779.60 |
| 8 | 96.60 | 96.60 | 0.00 | 953.40 | 779.30 | 174.10 | 953.40 | 779.80 |
| 9 | 89.50 | 89.50 | 0.00 | 953.50 | 779.50 | 174.00 | 953.50 | 779.30 |
| 10 | 80.20 | 80.20 | 0.00 | 953.50 | 778.70 | 174.80 | 953.60 | 778.80 |
| 11 | 75.60 | 75.60 | 0.00 | 953.50 | 778.50 | 175.00 | 953.50 | 778.60 |
| 12 | 66.00 | 66.00 | 0.00 | 953.50 | 778.10 | 175.40 | 953.50 | 778.20 |
| 13 | 62.10 | 62.10 | 0.00 | 953.50 | 778.50 | 175.00 | 953.50 | 778.20 |
| 14 | 65.40 | 65.40 | 0.00 | 953.40 | 778.60 | 174.80 | 953.50 | 778.50 |
| 15 | 78.30 | 78.30 | 0.00 | 953.30 | 779.30 | 174.00 | 953.30 | 779.00 |
| 16 | 103.00 | 103.00 | 0.00 | 953.70 | 781.30 | 172.40 | 953.00 | 780.50 |
| 17 | 118.70 | 118.70 | 0.00 | 952.40 | 781.20 | 171.20 | 952.50 | 781.10 |
| 18 | 119.00 | 119.00 | 0.00 | 952.60 | 781.40 | 171.20 | 952.50 | 781.20 |
| 19 | 107.90 | 107.90 | 0.00 | 952.90 | 780.80 | 172.10 | 952.80 | 780.60 |
| 20 | 116.20 | 116.20 | 0.00 | 953.00 | 780.90 | 172.10 | 952.90 | 781.00 |
| 21 | 107.00 | 107.00 | 0.00 | 953.30 | 780.00 | 173.30 | 953.10 | 780.30 |
| 22 | 99.50 | 99.50 | 0.00 | 953.70 | 779.20 | 174.50 | 953.50 | 779.70 |
| 23 | 97.80 | 97.80 | 0.00 | 953.90 | 778.90 | 175.00 | 953.70 | 779.40 |
| 24 | 90.70 | 90.70 | 0.00 | 953.90 | 778.70 | 175.20 | 953.90 | 778.80 |
|
| AVG | 91.25 | 91.25 | 0.00 | 953.40 | 779.58 | 173.81 | 953.35 | 779.60 |
|
| MAX | 119.00 | 119.00 | 0.00 | 953.90 | 781.40 | 175.40 | 953.90 | 781.30 |
| MIN | 62.10 | 62.10 | 0.00 | 952.40 | 778.10 | 171.20 | 952.50 | 778.20 |