Lower Monumental Dam
Wednesday July 15, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 31.50 | 12.40 | 17.10 | 538.09 | 437.89 | 100.20 | |
| 2 | 30.10 | 12.50 | 17.10 | 537.93 | 437.86 | 100.07 | |
| 3 | 30.10 | 12.40 | 17.10 | 537.99 | 438.06 | 99.93 | |
| 4 | 30.40 | 12.80 | 17.10 | 537.81 | 438.02 | 99.79 | 438.24 |
| 5 | 30.20 | 12.60 | 17.00 | 537.82 | 438.08 | 99.74 | 438.35 |
| 6 | 30.20 | 12.60 | 17.00 | 537.73 | 438.02 | 99.71 | 438.28 |
| 7 | 30.00 | 12.40 | 17.00 | 537.68 | 438.03 | 99.65 | 438.34 |
| 8 | 30.20 | 12.50 | 17.00 | 537.89 | 438.03 | 99.86 | 438.23 |
| 9 | 30.20 | 12.50 | 17.00 | 537.84 | 438.01 | 99.83 | 438.21 |
| 10 | 30.10 | 12.50 | 17.00 | 538.01 | 437.90 | 100.11 | 438.07 |
| 11 | 29.90 | 12.30 | 17.10 | 537.94 | 437.91 | 100.03 | 438.15 |
| 12 | 29.90 | 12.20 | 17.10 | 538.14 | 437.90 | 100.24 | 438.08 |
| 13 | 30.00 | 12.30 | 17.10 | 538.10 | 437.93 | 100.17 | 437.99 |
| 14 | 30.10 | 12.30 | 17.10 | 538.19 | 437.83 | 100.36 | 438.01 |
| 15 | 30.30 | 12.60 | 17.20 | 538.26 | 437.87 | 100.39 | 438.02 |
| 16 | 35.80 | 18.10 | 17.10 | 538.15 | 438.04 | 100.11 | 438.13 |
| 17 | 43.40 | 26.00 | 16.80 | 538.14 | 438.20 | 99.94 | 438.28 |
| 18 | 43.70 | 26.00 | 17.10 | 538.16 | 438.25 | 99.91 | 438.31 |
| 19 | 43.70 | 26.00 | 17.10 | 538.05 | 438.18 | 99.87 | 438.23 |
| 20 | 45.30 | 26.10 | 17.10 | 538.01 | 438.12 | 99.89 | 438.20 |
| 21 | 43.50 | 25.80 | 17.10 | 537.93 | 438.12 | 99.81 | |
| 22 | 43.30 | 25.50 | 17.10 | 537.99 | 438.05 | 99.94 | |
| 23 | 30.60 | 12.90 | 17.10 | 537.94 | 437.89 | 100.05 | |
| 24 | 31.40 | 12.20 | 17.10 | 537.95 | 437.53 | 100.42 | |
|
| AVG | 33.91 | 16.06 | 17.07 | 537.99 | 437.99 | 100.00 | 438.19 |
|
| MAX | 45.30 | 26.10 | 17.20 | 538.26 | 438.25 | 100.42 | 438.35 |
| MIN | 29.90 | 12.20 | 16.80 | 537.68 | 437.53 | 99.65 | 437.99 |