Chief Joseph Dam
Tuesday October 21, 2025
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
| 1 | 51.50 | 51.50 | 0.00 | 952.20 | 779.40 | 172.80 | 952.30 | 779.60 |
| 2 | 41.40 | 41.40 | 0.00 | 952.00 | 779.30 | 172.70 | 952.00 | 779.40 |
| 3 | 36.80 | 36.80 | 0.00 | 952.10 | 778.90 | 173.20 | 952.10 | 779.00 |
| 4 | 38.40 | 38.40 | 0.00 | 952.10 | 778.90 | 173.20 | 952.20 | 778.90 |
| 5 | 39.80 | 39.80 | 0.00 | 951.90 | 779.30 | 172.60 | 952.10 | 778.90 |
| 6 | 57.10 | 57.10 | 0.00 | 951.80 | 780.10 | 171.70 | 951.90 | 779.40 |
| 7 | 102.70 | 102.70 | 0.00 | 951.70 | 781.40 | 170.30 | 951.70 | 781.40 |
| 8 | 117.30 | 117.30 | 0.00 | 951.80 | 781.70 | 170.10 | 951.80 | 781.70 |
| 9 | 112.40 | 112.40 | 0.00 | 952.00 | 782.00 | 170.00 | 951.90 | 781.90 |
| 10 | 112.90 | 112.90 | 0.00 | 951.80 | 782.30 | 169.50 | 951.90 | 782.30 |
| 11 | 117.30 | 117.30 | 0.00 | 951.50 | 782.90 | 168.60 | 951.60 | 782.80 |
| 12 | 106.30 | 106.30 | 0.00 | 951.60 | 782.00 | 169.60 | 951.60 | 782.60 |
| 13 | 82.90 | 82.90 | 0.00 | 951.80 | 781.60 | 170.20 | 951.70 | 781.60 |
| 14 | 68.10 | 68.10 | 0.00 | 952.00 | 781.10 | 170.90 | 951.90 | 781.20 |
| 15 | 51.10 | 51.10 | 0.00 | 952.20 | 780.40 | 171.80 | 952.10 | 780.50 |
| 16 | 44.90 | 44.90 | 0.00 | 952.40 | 779.90 | 172.50 | 952.30 | 780.10 |
| 17 | 61.20 | 61.20 | 0.00 | 952.30 | 780.80 | 171.50 | 952.30 | 780.50 |
| 18 | 69.70 | 69.70 | 0.00 | 952.50 | 780.50 | 172.00 | 952.40 | 780.30 |
| 19 | 70.70 | 70.70 | 0.00 | 953.00 | 780.10 | 172.90 | 952.80 | 780.00 |
| 20 | 68.90 | 68.90 | 0.00 | 953.10 | 779.60 | 173.50 | 953.10 | 779.90 |
| 21 | 70.40 | 70.40 | 0.00 | 953.00 | 779.80 | 173.20 | 953.10 | 779.80 |
| 22 | 82.50 | 82.50 | 0.00 | 952.90 | 779.80 | 173.10 | 952.90 | 780.20 |
| 23 | 64.60 | 64.60 | 0.00 | 953.00 | 778.80 | 174.20 | 953.10 | 779.10 |
| 24 | 57.30 | 57.30 | 0.00 | 952.80 | 779.10 | 173.70 | 953.00 | 779.10 |
|
| AVG | 71.92 | 71.92 | 0.00 | 952.23 | 780.40 | 171.83 | 952.24 | 780.42 |
|
| MAX | 117.30 | 117.30 | 0.00 | 953.10 | 782.90 | 174.20 | 953.10 | 782.80 |
| MIN | 36.80 | 36.80 | 0.00 | 951.50 | 778.80 | 168.60 | 951.60 | 778.90 |