Chief Joseph Dam
Friday May 29, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 158.20 | 158.20 | 0.00 | 954.60 | 785.90 | 168.70 | 954.60 | 785.80 |
| 2 | 157.30 | 157.30 | 0.00 | 954.10 | 786.00 | 168.10 | 954.40 | 785.90 |
| 3 | 158.00 | 158.00 | 0.00 | 953.80 | 786.20 | 167.60 | 954.00 | 786.10 |
| 4 | 157.60 | 157.60 | 0.00 | 953.60 | 786.20 | 167.40 | 953.70 | 786.20 |
| 5 | 148.30 | 148.30 | 0.00 | 953.40 | 785.70 | 167.70 | 953.60 | 785.80 |
| 6 | 145.10 | 145.10 | 0.00 | 953.10 | 785.10 | 168.00 | 953.20 | 785.70 |
| 7 | 121.40 | 121.40 | 0.00 | 952.90 | 783.70 | 169.20 | 952.90 | 784.30 |
| 8 | 106.50 | 106.50 | 0.00 | 952.90 | 783.10 | 169.80 | 952.90 | 783.40 |
| 9 | 105.40 | 105.40 | 0.00 | 952.60 | 782.80 | 169.80 | 952.60 | 783.20 |
| 10 | 88.90 | 88.90 | 0.00 | 952.60 | 782.00 | 170.60 | 952.60 | 782.20 |
| 11 | 86.40 | 86.40 | 0.00 | 952.50 | 781.60 | 170.90 | 952.60 | 781.70 |
| 12 | 87.00 | 87.00 | 0.00 | 952.40 | 781.30 | 171.10 | 952.40 | 781.40 |
| 13 | 92.80 | 92.80 | 0.00 | 952.40 | 781.20 | 171.20 | 952.40 | 781.30 |
| 14 | 93.60 | 93.60 | 0.00 | 952.40 | 780.80 | 171.60 | 952.40 | 781.00 |
| 15 | 92.10 | 92.10 | 0.00 | 952.40 | 780.60 | 171.80 | 952.40 | 780.70 |
| 16 | 93.50 | 93.50 | 0.00 | 952.20 | 781.10 | 171.10 | 952.30 | 780.80 |
| 17 | 105.30 | 105.30 | 0.00 | 952.00 | 781.60 | 170.40 | 952.10 | 781.60 |
| 18 | 107.20 | 107.20 | 0.00 | 951.60 | 782.90 | 168.70 | 951.90 | 782.00 |
| 19 | 133.10 | 133.10 | 0.00 | 951.20 | 783.80 | 167.40 | 951.40 | 783.70 |
| 20 | 133.70 | 133.70 | 0.00 | 951.10 | 783.60 | 167.50 | 951.10 | 783.60 |
| 21 | 133.40 | 133.40 | 0.00 | 951.10 | 783.60 | 167.50 | 951.10 | 783.60 |
| 22 | 133.90 | 133.90 | 0.00 | 951.00 | 783.70 | 167.30 | 951.10 | 783.70 |
| 23 | 136.00 | 136.00 | 0.00 | 951.00 | 783.80 | 167.20 | 951.00 | 783.80 |
| 24 | 135.70 | 135.70 | 0.00 | 951.30 | 783.30 | 168.00 | 951.00 | 783.80 |
|
| AVG | 121.27 | 121.27 | 0.00 | 952.42 | 783.32 | 169.11 | 952.49 | 783.39 |
|
| MAX | 158.20 | 158.20 | 0.00 | 954.60 | 786.20 | 171.80 | 954.60 | 786.20 |
| MIN | 86.40 | 86.40 | 0.00 | 951.00 | 780.60 | 167.20 | 951.00 | 780.70 |