Chief Joseph Dam
Wednesday February 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 127.90 | 127.90 | 0.00 | 952.00 | 781.00 | 171.00 | 951.90 | 781.40 |
| 2 | 120.50 | 120.50 | 0.00 | 951.90 | 780.90 | 171.00 | 952.00 | 780.90 |
| 3 | 113.70 | 113.70 | 0.00 | 951.90 | 780.50 | 171.40 | 951.90 | 780.60 |
| 4 | 110.50 | 110.50 | 0.00 | 952.00 | 780.50 | 171.50 | 952.00 | 780.50 |
| 5 | 117.60 | 117.60 | 0.00 | 952.00 | 781.20 | 170.80 | 951.90 | 780.90 |
| 6 | 113.90 | 113.90 | 0.00 | 952.10 | 781.10 | 171.00 | 952.00 | 780.70 |
| 7 | 117.40 | 117.40 | 0.00 | 952.00 | 781.00 | 171.00 | 952.10 | 780.80 |
| 8 | 130.40 | 130.40 | 0.00 | 952.00 | 780.80 | 171.20 | 951.90 | 781.50 |
| 9 | 119.10 | 119.10 | 0.00 | 952.40 | 780.20 | 172.20 | 952.00 | 780.60 |
| 10 | 97.80 | 97.80 | 0.00 | 952.60 | 779.30 | 173.30 | 952.50 | 779.30 |
| 11 | 90.20 | 90.20 | 0.00 | 952.60 | 778.60 | 174.00 | 952.60 | 779.00 |
| 12 | 88.20 | 88.20 | 0.00 | 952.50 | 778.70 | 173.80 | 952.50 | 778.90 |
| 13 | 77.10 | 77.10 | 0.00 | 952.60 | 778.10 | 174.50 | 952.60 | 778.20 |
| 14 | 71.90 | 71.90 | 0.00 | 952.60 | 778.00 | 174.60 | 952.70 | 778.00 |
| 15 | 67.30 | 67.30 | 0.00 | 952.80 | 777.60 | 175.20 | 952.70 | 777.80 |
| 16 | 64.40 | 64.40 | 0.00 | 952.70 | 778.80 | 173.90 | 952.80 | 778.10 |
| 17 | 88.80 | 88.80 | 0.00 | 952.10 | 780.20 | 171.90 | 952.40 | 779.70 |
| 18 | 109.20 | 109.20 | 0.00 | 952.10 | 780.30 | 171.80 | 952.10 | 780.30 |
| 19 | 123.30 | 123.30 | 0.00 | 952.00 | 781.00 | 171.00 | 952.10 | 780.90 |
| 20 | 124.30 | 124.30 | 0.00 | 952.10 | 780.90 | 171.20 | 952.10 | 780.90 |
| 21 | 115.60 | 115.60 | 0.00 | 952.40 | 779.70 | 172.70 | 952.30 | 780.20 |
| 22 | 99.00 | 99.00 | 0.00 | 952.60 | 778.80 | 173.80 | 952.60 | 778.90 |
| 23 | 97.80 | 97.80 | 0.00 | 952.50 | 778.80 | 173.70 | 952.60 | 778.70 |
| 24 | 115.70 | 115.70 | 0.00 | 952.50 | 779.60 | 172.90 | 952.40 | 779.70 |
|
| AVG | 104.23 | 104.23 | 0.00 | 952.29 | 779.82 | 172.47 | 952.28 | 779.85 |
|
| MAX | 130.40 | 130.40 | 0.00 | 952.80 | 781.20 | 175.20 | 952.80 | 781.50 |
| MIN | 64.40 | 64.40 | 0.00 | 951.90 | 777.60 | 170.80 | 951.90 | 777.80 |