Chief Joseph Dam
Friday October 30, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 50.20 | 50.20 | 0.00 | 953.20 | 779.90 | 173.30 | 953.30 | 779.80 |
| 2 | 40.30 | 40.30 | 0.00 | 953.20 | 780.10 | 173.10 | 953.20 | 779.90 |
| 3 | 40.00 | 40.00 | 0.00 | 953.20 | 779.80 | 173.40 | 953.20 | 780.00 |
| 4 | 39.80 | 39.80 | 0.00 | 953.30 | 780.00 | 173.30 | 953.20 | 780.00 |
| 5 | 40.00 | 40.00 | 0.00 | 953.20 | 780.30 | 172.90 | 953.30 | 780.00 |
| 6 | 66.20 | 66.20 | 0.00 | 952.90 | 780.80 | 172.10 | 953.00 | 781.00 |
| 7 | 69.30 | 69.30 | 0.00 | 953.10 | 781.30 | 171.80 | 953.00 | 781.10 |
| 8 | 72.80 | 72.80 | 0.00 | 953.20 | 780.80 | 172.40 | 953.20 | 780.80 |
| 9 | 78.20 | 78.20 | 0.00 | 953.20 | 780.30 | 172.90 | 953.10 | 780.80 |
| 10 | 69.40 | 69.40 | 0.00 | 953.40 | 780.00 | 173.40 | 953.30 | 780.10 |
| 11 | 69.90 | 69.90 | 0.00 | 953.50 | 779.70 | 173.80 | 953.50 | 779.90 |
| 12 | 70.50 | 70.50 | 0.00 | 953.50 | 779.70 | 173.80 | 953.50 | 779.70 |
| 13 | 66.10 | 66.10 | 0.00 | 953.60 | 779.90 | 173.70 | 953.60 | 779.70 |
| 14 | 76.30 | 76.30 | 0.00 | 953.60 | 780.20 | 173.40 | 953.50 | 780.40 |
| 15 | 65.80 | 65.80 | 0.00 | 953.70 | 780.30 | 173.40 | 953.60 | 780.00 |
| 16 | 68.20 | 68.20 | 0.00 | 953.60 | 780.50 | 173.10 | 953.70 | 780.40 |
| 17 | 73.40 | 73.40 | 0.00 | 953.40 | 781.10 | 172.30 | 953.50 | 780.70 |
| 18 | 71.50 | 71.50 | 0.00 | 953.40 | 780.60 | 172.80 | 953.40 | 780.50 |
| 19 | 69.70 | 69.70 | 0.00 | 953.40 | 780.30 | 173.10 | 953.40 | 780.30 |
| 20 | 75.50 | 75.50 | 0.00 | 953.30 | 781.10 | 172.20 | 953.40 | 781.00 |
| 21 | 77.10 | 77.10 | 0.00 | 953.40 | 781.10 | 172.30 | 953.30 | 781.10 |
| 22 | 79.90 | 79.90 | 0.00 | 953.20 | 781.60 | 171.60 | 953.30 | 781.50 |
| 23 | 79.10 | 79.10 | 0.00 | 953.10 | 781.60 | 171.50 | 953.20 | 781.80 |
| 24 | 76.50 | 76.50 | 0.00 | 953.10 | 781.70 | 171.40 | 953.00 | 782.00 |
|
| AVG | 66.07 | 66.07 | 0.00 | 953.32 | 780.53 | 172.79 | 953.32 | 780.52 |
|
| MAX | 79.90 | 79.90 | 0.00 | 953.70 | 781.70 | 173.80 | 953.70 | 782.00 |
| MIN | 39.80 | 39.80 | 0.00 | 952.90 | 779.70 | 171.40 | 953.00 | 779.70 |