Chief Joseph Dam
Saturday March 21, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 101.20 | 101.20 | 0.00 | 954.00 | 782.80 | 171.20 | 953.90 | 782.70 |
| 2 | 128.10 | 128.10 | 0.00 | 953.60 | 784.20 | 169.40 | 953.70 | 784.20 |
| 3 | 138.70 | 138.70 | 0.00 | 953.30 | 784.60 | 168.70 | 953.40 | 784.60 |
| 4 | 128.70 | 128.70 | 0.00 | 953.30 | 783.60 | 169.70 | 953.30 | 784.10 |
| 5 | 118.10 | 118.10 | 0.00 | 953.10 | 783.50 | 169.60 | 953.20 | 783.60 |
| 6 | 109.50 | 109.50 | 0.00 | 952.90 | 783.40 | 169.50 | 953.00 | 783.20 |
| 7 | 129.00 | 129.00 | 0.00 | 952.30 | 784.20 | 168.10 | 952.50 | 784.10 |
| 8 | 122.60 | 122.60 | 0.00 | 952.30 | 783.70 | 168.60 | 952.30 | 783.70 |
| 9 | 123.40 | 123.40 | 0.00 | 952.50 | 783.90 | 168.60 | 952.40 | 783.80 |
| 10 | 124.40 | 124.40 | 0.00 | 952.60 | 783.60 | 169.00 | 952.50 | 783.90 |
| 11 | 113.90 | 113.90 | 0.00 | 952.60 | 783.10 | 169.50 | 952.60 | 783.10 |
| 12 | 110.10 | 110.10 | 0.00 | 952.60 | 782.90 | 169.70 | 952.70 | 783.10 |
| 13 | 101.80 | 101.80 | 0.00 | 952.80 | 782.40 | 170.40 | 952.70 | 782.60 |
| 14 | 90.00 | 90.00 | 0.00 | 952.90 | 781.60 | 171.30 | 952.80 | 782.00 |
| 15 | 85.90 | 85.90 | 0.00 | 952.90 | 781.60 | 171.30 | 952.90 | 781.90 |
| 16 | 85.60 | 85.60 | 0.00 | 952.70 | 781.80 | 170.90 | 952.70 | 781.90 |
| 17 | 83.30 | 83.30 | 0.00 | 952.40 | 782.00 | 170.40 | 952.60 | 781.70 |
| 18 | 103.30 | 103.30 | 0.00 | 951.90 | 783.30 | 168.60 | 952.20 | 782.70 |
| 19 | 125.90 | 125.90 | 0.00 | 951.70 | 783.70 | 168.00 | 951.70 | 783.70 |
| 20 | 127.80 | 127.80 | 0.00 | 952.20 | 784.30 | 167.90 | 952.10 | 783.90 |
| 21 | 133.80 | 133.80 | 0.00 | 952.20 | 784.40 | 167.80 | 952.20 | 784.40 |
| 22 | 131.10 | 131.10 | 0.00 | 952.40 | 784.10 | 168.30 | 952.30 | 784.30 |
| 23 | 121.70 | 121.70 | 0.00 | 952.50 | 783.80 | 168.70 | 953.50 | 783.90 |
| 24 | 132.90 | 132.90 | 0.00 | 952.30 | 784.20 | 168.10 | 952.30 | 784.40 |
|
| AVG | 115.45 | 115.45 | 0.00 | 952.67 | 783.36 | 169.30 | 952.73 | 783.40 |
|
| MAX | 138.70 | 138.70 | 0.00 | 954.00 | 784.60 | 171.30 | 953.90 | 784.60 |
| MIN | 83.30 | 83.30 | 0.00 | 951.70 | 781.60 | 167.80 | 951.70 | 781.70 |