Chief Joseph Dam
Monday February 2, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Average Forebay Elevation | Average Tailwater Elevation |
|---|
| 1 | 117.90 | 117.90 | 0.00 | 952.70 | 781.00 | 171.70 | 952.70 | 781.10 |
| 2 | 117.70 | 117.70 | 0.00 | 952.50 | 780.80 | 171.70 | 952.60 | 781.00 |
| 3 | 117.60 | 117.60 | 0.00 | 952.20 | 780.90 | 171.30 | 952.30 | 780.90 |
| 4 | 118.00 | 118.00 | 0.00 | 952.10 | 780.50 | 171.60 | 952.10 | 780.80 |
| 5 | 111.20 | 111.20 | 0.00 | 952.00 | 780.10 | 171.90 | 952.00 | 780.28 |
| 6 | 112.30 | 112.30 | 0.00 | 951.80 | 780.10 | 171.70 | 951.80 | 780.10 |
| 7 | 113.90 | 113.90 | 0.00 | 951.70 | 780.20 | 171.50 | 951.80 | 780.00 |
| 8 | 133.90 | 133.90 | 0.00 | 951.70 | 781.10 | 170.60 | 951.60 | 781.10 |
| 9 | 121.20 | 121.20 | 0.00 | 952.10 | 780.00 | 172.10 | 951.80 | 780.60 |
| 10 | 123.70 | 123.70 | 0.00 | 952.20 | 780.90 | 171.30 | 952.20 | 780.70 |
| 11 | 126.30 | 126.30 | 0.00 | 952.20 | 781.60 | 170.60 | 952.20 | 781.20 |
| 12 | 127.10 | 127.10 | 0.00 | 952.30 | 781.40 | 170.90 | 952.20 | 781.50 |
| 13 | 127.30 | 127.30 | 0.00 | 952.40 | 781.90 | 170.50 | 952.30 | 781.90 |
| 14 | 123.50 | 123.50 | 0.00 | 952.40 | 782.00 | 170.40 | 952.40 | 782.00 |
| 15 | 115.70 | 115.70 | 0.00 | 952.40 | 781.70 | 170.70 | 952.40 | 781.80 |
| 16 | 121.10 | 121.10 | 0.00 | 951.90 | 783.10 | 168.80 | 952.20 | 782.50 |
| 17 | 140.20 | 140.20 | 0.00 | 951.40 | 784.50 | 166.90 | 951.70 | 783.80 |
| 18 | 139.70 | 139.70 | 0.00 | 951.70 | 783.70 | 168.00 | 951.50 | 783.80 |
| 19 | 137.30 | 137.30 | 0.00 | 951.90 | 783.80 | 168.10 | 951.90 | 783.70 |
| 20 | 138.30 | 138.30 | 0.00 | 952.10 | 783.90 | 168.20 | 952.00 | 783.80 |
| 21 | 140.00 | 140.00 | 0.00 | 952.40 | 784.00 | 168.40 | 952.20 | 783.90 |
| 22 | 141.70 | 141.70 | 0.00 | 952.40 | 784.10 | 168.30 | 952.40 | 784.10 |
| 23 | 138.70 | 138.70 | 0.00 | 952.40 | 784.00 | 168.40 | 952.50 | 783.90 |
| 24 | 137.90 | 137.90 | 0.00 | 952.40 | 783.80 | 168.60 | 952.40 | 784.00 |
|
| AVG | 126.76 | 126.76 | 0.00 | 952.14 | 782.05 | 170.09 | 952.13 | 782.02 |
|
| MAX | 141.70 | 141.70 | 0.00 | 952.70 | 784.50 | 172.10 | 952.70 | 784.10 |
| MIN | 111.20 | 111.20 | 0.00 | 951.40 | 780.00 | 166.90 | 951.50 | 780.00 |