Ice Harbor Dam
Sunday June 21, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 24.40 | 12.60 | 11.20 | 437.57 | 339.50 | 98.07 | 340.29 |
| 2 | 23.00 | 12.60 | 9.90 | 437.61 | 339.66 | 97.95 | 340.51 |
| 3 | 24.60 | 12.60 | 10.00 | 437.77 | 340.24 | 97.53 | 340.94 |
| 4 | 23.10 | 12.60 | 10.00 | 437.81 | 339.76 | 98.05 | 340.58 |
| 5 | 23.40 | 13.00 | 10.00 | 437.77 | 339.99 | 97.78 | 340.74 |
| 6 | 34.80 | 24.40 | 10.00 | 437.83 | 340.60 | 97.23 | 341.35 |
| 7 | 34.80 | 24.40 | 10.00 | 437.77 | 340.53 | 97.24 | 341.16 |
| 8 | 24.60 | 14.10 | 10.00 | 437.81 | 339.48 | 98.33 | 340.46 |
| 9 | 23.10 | 12.60 | 10.00 | 437.88 | 339.62 | 98.26 | 340.58 |
| 10 | 23.20 | 12.60 | 10.10 | 438.03 | 339.62 | 98.41 | 340.48 |
| 11 | 23.10 | 12.60 | 10.00 | 438.06 | 339.54 | 98.52 | 340.43 |
| 12 | 23.10 | 12.60 | 10.00 | 438.14 | 339.43 | 98.71 | 340.36 |
| 13 | 23.10 | 12.50 | 10.10 | 438.24 | 339.48 | 98.76 | 340.41 |
| 14 | 23.30 | 12.60 | 10.20 | 438.27 | 339.56 | 98.71 | 340.47 |
| 15 | 35.20 | 24.60 | 10.10 | 438.20 | 340.41 | 97.79 | 341.18 |
| 16 | 35.60 | 25.00 | 10.10 | 438.21 | 340.32 | 97.89 | 341.12 |
| 17 | 35.40 | 24.80 | 10.10 | 438.17 | 340.29 | 97.88 | 341.03 |
| 18 | 35.50 | 25.00 | 10.00 | 438.03 | 340.26 | 97.77 | 341.01 |
| 19 | 35.40 | 25.00 | 9.90 | 438.12 | 340.28 | 97.84 | 340.98 |
| 20 | 35.40 | 25.00 | 9.90 | 438.13 | 340.35 | 97.78 | 341.08 |
| 21 | 35.20 | 24.90 | 9.90 | 437.99 | 340.23 | 97.76 | 340.98 |
| 22 | 35.30 | 24.90 | 9.80 | 437.99 | 340.25 | 97.74 | 340.99 |
| 23 | 35.40 | 25.00 | 9.90 | 437.87 | 340.24 | 97.63 | 340.96 |
| 24 | 35.00 | 24.70 | 9.80 | 437.84 | 340.11 | 97.73 | 340.91 |
|
| AVG | 29.38 | 18.78 | 10.04 | 437.96 | 339.99 | 97.97 | 340.79 |
|
| MAX | 35.60 | 25.00 | 11.20 | 438.27 | 340.60 | 98.76 | 341.35 |
| MIN | 23.00 | 12.50 | 9.80 | 437.57 | 339.43 | 97.23 | 340.29 |