Chief Joseph Dam
Wednesday May 6, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 129.10 | 129.10 | 0.00 | 952.30 | 784.20 | 168.10 | 952.10 | 784.50 |
| 2 | 122.60 | 122.60 | 0.00 | 952.40 | 784.50 | 167.90 | 952.40 | 784.30 |
| 3 | 119.50 | 119.50 | 0.00 | 952.40 | 783.90 | 168.50 | 952.40 | 784.20 |
| 4 | 117.10 | 117.10 | 0.00 | 952.30 | 784.00 | 168.30 | 952.30 | 784.00 |
| 5 | 116.00 | 116.00 | 0.00 | 952.00 | 784.00 | 168.00 | 952.10 | 784.00 |
| 6 | 118.70 | 118.70 | 0.00 | 951.70 | 783.80 | 167.90 | 951.80 | 784.10 |
| 7 | 110.80 | 110.80 | 0.00 | 951.70 | 783.60 | 168.10 | 951.70 | 783.70 |
| 8 | 113.10 | 113.10 | 0.00 | 951.70 | 783.00 | 168.70 | 951.70 | 783.70 |
| 9 | 68.00 | 68.00 | 0.00 | 952.40 | 781.30 | 171.10 | 952.10 | 781.20 |
| 10 | 54.10 | 54.10 | 0.00 | 952.30 | 780.10 | 172.20 | 952.30 | 780.40 |
| 11 | 57.70 | 57.70 | 0.00 | 952.50 | 778.70 | 173.80 | 952.30 | 779.90 |
| 12 | 40.30 | 40.30 | 0.00 | 952.90 | 778.60 | 174.30 | 952.70 | 778.70 |
| 13 | 42.20 | 42.20 | 0.00 | 952.90 | 778.30 | 174.60 | 952.90 | 778.50 |
| 14 | 48.70 | 48.70 | 0.00 | 953.10 | 777.80 | 175.30 | 952.90 | 778.10 |
| 15 | 46.40 | 46.40 | 0.00 | 953.30 | 778.10 | 175.20 | 953.30 | 778.00 |
| 16 | 47.00 | 47.00 | 0.00 | 953.30 | 777.80 | 175.50 | 953.20 | 777.80 |
| 17 | 43.70 | 43.70 | 0.00 | 953.60 | 777.80 | 175.80 | 953.80 | 778.00 |
| 18 | 47.00 | 47.00 | 0.00 | 953.70 | 778.40 | 175.30 | 953.70 | 777.70 |
| 19 | 81.60 | 81.60 | 0.00 | 953.50 | 778.50 | 175.00 | 953.50 | 779.40 |
| 20 | 137.80 | 137.80 | 0.00 | 953.50 | 782.50 | 171.00 | 953.30 | 782.40 |
| 21 | 135.70 | 135.70 | 0.00 | 953.60 | 782.20 | 171.40 | 953.60 | 782.20 |
| 22 | 132.30 | 132.30 | 0.00 | 953.60 | 782.10 | 171.50 | 953.60 | 782.20 |
| 23 | 127.20 | 127.20 | 0.00 | 953.50 | 782.20 | 171.30 | 953.50 | 782.10 |
| 24 | 118.60 | 118.60 | 0.00 | 953.60 | 781.70 | 171.90 | 953.60 | 781.80 |
|
| AVG | 90.63 | 90.63 | 0.00 | 952.82 | 781.13 | 171.70 | 952.78 | 781.29 |
|
| MAX | 137.80 | 137.80 | 0.00 | 953.70 | 784.50 | 175.80 | 953.80 | 784.50 |
| MIN | 40.30 | 40.30 | 0.00 | 951.70 | 777.80 | 167.90 | 951.70 | 777.70 |