Chief Joseph Dam
Saturday August 15, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 81.70 | 81.70 | 0.00 | 952.20 | 780.40 | 171.80 | 952.10 | 781.00 |
| 2 | 68.10 | 68.10 | 0.00 | 952.20 | 780.30 | 171.90 | 952.20 | 780.30 |
| 3 | 60.30 | 60.30 | 0.00 | 952.30 | 780.30 | 172.00 | 952.30 | 780.30 |
| 4 | 60.30 | 60.30 | 0.00 | 952.30 | 780.30 | 172.00 | 952.30 | 780.30 |
| 5 | 59.80 | 59.80 | 0.00 | 952.40 | 780.50 | 171.90 | 952.40 | 780.50 |
| 6 | 59.80 | 59.80 | 0.00 | 952.30 | 780.60 | 171.70 | 952.30 | 780.50 |
| 7 | 59.40 | 59.40 | 0.00 | 952.40 | 780.70 | 171.70 | 952.30 | 780.60 |
| 8 | 62.70 | 62.70 | 0.00 | 952.40 | 781.00 | 171.40 | 952.40 | 780.80 |
| 9 | 74.80 | 74.80 | 0.00 | 952.30 | 781.70 | 170.60 | 952.30 | 781.50 |
| 10 | 82.30 | 82.30 | 0.00 | 952.30 | 781.90 | 170.40 | 952.20 | 781.90 |
| 11 | 87.50 | 87.50 | 0.00 | 952.30 | 782.30 | 170.00 | 952.30 | 782.10 |
| 12 | 94.40 | 94.40 | 0.00 | 952.20 | 782.70 | 169.50 | 952.20 | 782.70 |
| 13 | 96.10 | 96.10 | 0.00 | 952.10 | 783.00 | 169.10 | 952.10 | 782.80 |
| 14 | 98.50 | 98.50 | 0.00 | 952.00 | 783.30 | 168.70 | 952.10 | 783.10 |
| 15 | 108.00 | 108.00 | 0.00 | 951.80 | 783.70 | 168.10 | 951.90 | 783.70 |
| 16 | 115.20 | 115.20 | 0.00 | 951.70 | 783.70 | 168.00 | 951.70 | 783.70 |
| 17 | 119.30 | 119.30 | 0.00 | 951.70 | 783.90 | 167.80 | 951.70 | 783.80 |
| 18 | | | | | | | | |
| 19 | | | | | | | | |
| 20 | | | | | | | | |
| 21 | | | | | | | | |
| 22 | | | | | | | | |
| 23 | | | | | | | | |
| 24 | | | | | | | | |
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| AVG | 81.66 | 81.66 | 0.00 | 952.17 | 781.78 | 170.39 | 952.16 | 781.74 |
|
| MAX | 119.30 | 119.30 | 0.00 | 952.40 | 783.90 | 172.00 | 952.40 | 783.80 |
| MIN | 59.40 | 59.40 | 0.00 | 951.70 | 780.30 | 167.80 | 951.70 | 780.30 |