Chief Joseph Dam
Thursday May 7, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 103.80 | 103.80 | 0.00 | 953.50 | 781.10 | 172.40 | 953.60 | 781.00 |
| 2 | 122.20 | 122.20 | 0.00 | 953.00 | 782.30 | 170.70 | 953.20 | 782.30 |
| 3 | 123.40 | 123.40 | 0.00 | 952.50 | 782.10 | 170.40 | 952.70 | 782.50 |
| 4 | 99.70 | 99.70 | 0.00 | 952.30 | 781.30 | 171.00 | 952.40 | 781.30 |
| 5 | 72.00 | 72.00 | 0.00 | 952.10 | 780.60 | 171.50 | 952.20 | 780.10 |
| 6 | 92.00 | 92.00 | 0.00 | 951.70 | 780.90 | 170.80 | 951.80 | 781.30 |
| 7 | 68.80 | 68.80 | 0.00 | 952.20 | 778.90 | 173.30 | 951.90 | 779.50 |
| 8 | 92.30 | 92.30 | 0.00 | 952.30 | 780.10 | 172.20 | 952.00 | 780.70 |
| 9 | 61.10 | 61.10 | 0.00 | 952.70 | 778.00 | 174.70 | 952.50 | 778.60 |
| 10 | 73.00 | 73.00 | 0.00 | 952.40 | 779.30 | 173.10 | 952.50 | 779.20 |
| 11 | 75.50 | 75.50 | 0.00 | 952.40 | 778.90 | 173.50 | 952.40 | 779.10 |
| 12 | 74.80 | 74.80 | 0.00 | 952.50 | 779.00 | 173.50 | 952.50 | 778.90 |
| 13 | 73.40 | 73.40 | 0.00 | 952.60 | 778.70 | 173.90 | 952.60 | 778.90 |
| 14 | 73.70 | 73.70 | 0.00 | 952.80 | 778.50 | 174.30 | 952.60 | 778.60 |
| 15 | 77.10 | 77.10 | 0.00 | 953.00 | 778.50 | 174.50 | 952.90 | 778.60 |
| 16 | 87.50 | 87.50 | 0.00 | 952.90 | 779.40 | 173.50 | 953.00 | 778.90 |
| 17 | 92.60 | 92.60 | 0.00 | 952.90 | 779.10 | 173.80 | 952.90 | 779.10 |
| 18 | 103.80 | 103.80 | 0.00 | 952.80 | 780.70 | 172.10 | 952.80 | 779.70 |
| 19 | 125.00 | 125.00 | 0.00 | 952.40 | 782.00 | 170.40 | 952.60 | 781.20 |
| 20 | 139.20 | 139.20 | 0.00 | 952.50 | 782.00 | 170.50 | 952.40 | 782.10 |
| 21 | 134.40 | 134.40 | 0.00 | 952.90 | 781.50 | 171.40 | 952.70 | 781.90 |
| 22 | 132.20 | 132.20 | 0.00 | 953.20 | 781.40 | 171.80 | 953.00 | 781.80 |
| 23 | 129.50 | 129.50 | 0.00 | 953.60 | 781.20 | 172.40 | 953.40 | 781.70 |
| 24 | 107.00 | 107.00 | 0.00 | 953.90 | 780.60 | 173.30 | 953.80 | 780.40 |
|
| AVG | 97.25 | 97.25 | 0.00 | 952.71 | 780.25 | 172.46 | 952.68 | 780.31 |
|
| MAX | 139.20 | 139.20 | 0.00 | 953.90 | 782.30 | 174.70 | 953.80 | 782.50 |
| MIN | 61.10 | 61.10 | 0.00 | 951.70 | 778.00 | 170.40 | 951.80 | 778.60 |