Ice Harbor Dam
Sunday March 22, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 64.90 | 54.10 | 10.30 | 438.70 | 343.28 | 95.42 | 343.52 |
| 2 | 64.80 | 54.00 | 10.30 | 438.72 | 343.33 | 95.39 | 343.50 |
| 3 | 65.00 | 54.10 | 10.40 | 438.78 | 343.29 | 95.49 | 343.46 |
| 4 | 64.90 | 54.00 | 10.40 | 438.83 | 343.32 | 95.51 | 343.52 |
| 5 | 65.00 | 54.10 | 10.40 | 438.85 | 343.35 | 95.50 | 343.53 |
| 6 | 65.00 | 54.10 | 10.40 | 438.85 | 343.37 | 95.48 | 343.56 |
| 7 | 74.30 | 54.00 | 19.80 | 438.93 | 343.91 | 95.02 | 344.23 |
| 8 | 74.60 | 54.00 | 20.00 | 439.16 | 343.82 | 95.34 | 344.18 |
| 9 | 74.50 | 53.90 | 20.10 | 439.20 | 343.86 | 95.34 | 344.27 |
| 10 | 74.60 | 53.90 | 20.20 | 439.39 | 343.88 | 95.51 | 344.29 |
| 11 | 74.40 | 53.80 | 20.10 | 439.45 | 343.94 | 95.51 | 344.31 |
| 12 | 74.50 | 53.80 | 20.10 | 439.57 | 343.93 | 95.64 | 344.25 |
| 13 | 74.70 | 54.10 | 20.10 | 439.46 | 343.91 | 95.55 | 344.25 |
| 14 | 75.10 | 54.50 | 20.10 | 439.57 | 343.93 | 95.64 | 344.25 |
| 15 | 74.90 | 54.50 | 19.90 | 439.16 | 343.95 | 95.21 | 344.19 |
| 16 | 74.50 | 54.20 | 19.80 | 439.11 | 343.97 | 95.14 | 344.30 |
| 17 | 74.50 | 54.20 | 19.80 | 438.96 | 343.87 | 95.09 | 344.25 |
| 18 | 74.60 | 54.20 | 19.90 | 438.80 | 343.96 | 94.84 | 344.23 |
| 19 | 74.50 | 54.10 | 19.90 | 439.05 | 343.94 | 95.11 | 344.23 |
| 20 | 74.40 | 54.10 | 19.80 | 438.94 | 343.89 | 95.05 | 344.32 |
| 21 | 74.30 | 54.00 | 19.80 | 438.99 | 343.97 | 95.02 | 344.38 |
| 22 | 74.30 | 54.00 | 19.80 | 438.98 | 343.93 | 95.05 | 344.30 |
| 23 | 74.40 | 54.20 | 19.80 | 438.97 | 343.96 | 95.01 | 344.28 |
| 24 | 74.20 | 53.90 | 19.80 | 439.08 | 343.75 | 95.33 | 344.06 |
|
| AVG | 72.12 | 54.08 | 17.54 | 439.06 | 343.76 | 95.30 | 344.07 |
|
| MAX | 75.10 | 54.50 | 20.20 | 439.57 | 343.97 | 95.64 | 344.38 |
| MIN | 64.80 | 53.80 | 10.30 | 438.70 | 343.28 | 94.84 | 343.46 |