Chief Joseph Dam
Sunday February 1, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 133.00 | 133.00 | 0.00 | 952.30 | 782.00 | 170.30 | 952.30 | 782.00 |
| 2 | 132.50 | 132.50 | 0.00 | 952.20 | 782.10 | 170.10 | 952.30 | 782.00 |
| 3 | 131.80 | 131.80 | 0.00 | 952.00 | 781.70 | 170.30 | 952.10 | 782.00 |
| 4 | 114.20 | 114.20 | 0.00 | 952.00 | 780.70 | 171.30 | 952.00 | 780.90 |
| 5 | 117.50 | 117.50 | 0.00 | 951.90 | 780.80 | 171.10 | 951.90 | 780.90 |
| 6 | 117.80 | 117.80 | 0.00 | 951.90 | 781.10 | 170.80 | 951.80 | 780.90 |
| 7 | 115.20 | 115.20 | 0.00 | 951.90 | 780.70 | 171.20 | 951.90 | 780.80 |
| 8 | 117.80 | 117.80 | 0.00 | 951.90 | 780.30 | 171.60 | 951.90 | 780.70 |
| 9 | 96.80 | 96.80 | 0.00 | 952.40 | 779.30 | 173.10 | 952.30 | 779.50 |
| 10 | 98.00 | 98.00 | 0.00 | 952.30 | 779.80 | 172.50 | 952.40 | 779.70 |
| 11 | 97.30 | 97.30 | 0.00 | 952.20 | 779.60 | 172.60 | 952.30 | 779.70 |
| 12 | 97.40 | 97.40 | 0.00 | 952.30 | 779.80 | 172.50 | 952.30 | 779.70 |
| 13 | 92.40 | 92.40 | 0.00 | 952.30 | 779.20 | 173.10 | 952.30 | 779.70 |
| 14 | 83.30 | 83.30 | 0.00 | 952.30 | 779.00 | 173.30 | 952.30 | 779.10 |
| 15 | 77.10 | 77.10 | 0.00 | 952.30 | 779.40 | 172.90 | 952.30 | 779.20 |
| 16 | 73.10 | 73.10 | 0.00 | 952.30 | 779.50 | 172.80 | 952.30 | 779.30 |
| 17 | 85.60 | 85.60 | 0.00 | 952.20 | 781.10 | 171.10 | 952.30 | 780.30 |
| 18 | 99.50 | 99.50 | 0.00 | 952.30 | 780.70 | 171.60 | 952.10 | 780.70 |
| 19 | 113.00 | 113.00 | 0.00 | 952.60 | 781.60 | 171.00 | 952.40 | 781.30 |
| 20 | 125.60 | 125.60 | 0.00 | 952.70 | 782.00 | 170.70 | 952.60 | 782.00 |
| 21 | 125.10 | 125.10 | 0.00 | 952.80 | 781.90 | 170.90 | 952.80 | 782.00 |
| 22 | 125.90 | 125.90 | 0.00 | 952.90 | 781.90 | 171.00 | 952.90 | 781.90 |
| 23 | 117.60 | 117.60 | 0.00 | 953.00 | 781.10 | 171.90 | 952.90 | 781.40 |
| 24 | 118.40 | 118.40 | 0.00 | 952.80 | 781.10 | 171.70 | 952.90 | 781.30 |
|
| AVG | 108.58 | 108.58 | 0.00 | 952.32 | 780.68 | 171.64 | 952.32 | 780.71 |
|
| MAX | 133.00 | 133.00 | 0.00 | 953.00 | 782.10 | 173.30 | 952.90 | 782.00 |
| MIN | 73.10 | 73.10 | 0.00 | 951.90 | 779.00 | 170.10 | 951.80 | 779.10 |