Chief Joseph Dam
Sunday May 10, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 146.20 | 146.20 | 0.00 | 952.80 | 783.20 | 169.60 | 952.70 | 783.30 |
| 2 | 143.20 | 143.20 | 0.00 | 953.00 | 782.90 | 170.10 | 952.90 | 783.20 |
| 3 | 143.30 | 143.30 | 0.00 | 952.90 | 783.40 | 169.50 | 952.90 | 783.30 |
| 4 | 135.30 | 135.30 | 0.00 | 952.90 | 782.50 | 170.40 | 952.90 | 783.00 |
| 5 | 125.00 | 125.00 | 0.00 | 953.00 | 782.40 | 170.60 | 953.00 | 782.40 |
| 6 | 124.80 | 124.80 | 0.00 | 952.80 | 782.60 | 170.20 | 952.90 | 782.70 |
| 7 | 117.30 | 117.30 | 0.00 | 952.90 | 782.20 | 170.70 | 952.90 | 782.30 |
| 8 | 115.50 | 115.50 | 0.00 | 952.80 | 782.20 | 170.60 | 952.80 | 782.20 |
| 9 | 118.60 | 118.60 | 0.00 | 952.50 | 782.60 | 169.90 | 952.60 | 782.40 |
| 10 | 117.10 | 117.10 | 0.00 | 952.40 | 782.10 | 170.30 | 952.50 | 782.30 |
| 11 | 112.00 | 112.00 | 0.00 | 952.50 | 781.90 | 170.60 | 952.50 | 781.90 |
| 12 | 111.70 | 111.70 | 0.00 | 952.60 | 781.90 | 170.70 | 952.60 | 781.80 |
| 13 | 107.00 | 107.00 | 0.00 | 952.40 | 781.30 | 171.10 | 952.50 | 781.40 |
| 14 | 100.60 | 100.60 | 0.00 | 952.40 | 780.70 | 171.70 | 952.40 | 781.00 |
| 15 | | | | | | | | |
| 16 | | | | | | | | |
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| 24 | | | | | | | | |
|
| AVG | 122.69 | 122.69 | 0.00 | 952.71 | 782.28 | 170.43 | 952.72 | 782.37 |
|
| MAX | 146.20 | 146.20 | 0.00 | 953.00 | 783.40 | 171.70 | 953.00 | 783.30 |
| MIN | 100.60 | 100.60 | 0.00 | 952.40 | 780.70 | 169.50 | 952.40 | 781.00 |