Lower Monumental Dam
Saturday September 19, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 17.70 | 17.10 | 0.00 | 538.48 | 438.78 | 99.70 | 438.92 |
| 2 | 13.40 | 12.80 | 0.00 | 538.58 | 438.74 | 99.84 | 438.87 |
| 3 | 13.10 | 12.50 | 0.00 | 538.61 | 438.81 | 99.80 | 438.92 |
| 4 | 14.80 | 12.70 | 0.00 | 538.67 | 438.79 | 99.88 | 438.94 |
| 5 | 13.90 | 12.80 | 0.50 | 538.71 | 438.70 | 100.01 | 439.34 |
| 6 | 25.60 | 16.90 | 8.10 | 538.65 | 438.24 | 100.41 | 438.81 |
| 7 | 24.70 | 15.80 | 8.30 | 538.85 | 438.08 | 100.77 | 438.60 |
| 8 | 24.90 | 16.10 | 8.20 | 538.62 | 438.21 | 100.41 | 438.74 |
| 9 | 21.60 | 12.80 | 8.30 | 538.83 | 437.88 | 100.95 | 438.36 |
| 10 | 21.40 | 12.60 | 8.20 | 538.59 | 438.02 | 100.57 | 438.61 |
| 11 | 21.50 | 12.70 | 8.20 | 538.79 | 438.13 | 100.66 | 438.75 |
| 12 | 21.50 | 12.70 | 8.20 | 538.60 | 438.10 | 100.50 | 438.79 |
| 13 | 21.70 | 13.00 | 8.10 | 538.71 | 438.22 | 100.49 | 438.89 |
| 14 | 21.80 | 12.90 | 8.20 | 538.64 | 438.24 | 100.40 | 438.93 |
| 15 | 21.60 | 12.90 | 8.00 | 538.61 | 438.37 | 100.24 | 439.18 |
| 16 | 21.70 | 13.00 | 8.20 | 538.65 | 438.45 | 100.20 | 439.26 |
| 17 | 21.90 | 13.20 | 8.10 | 538.55 | 438.47 | 100.08 | 439.34 |
| 18 | 18.80 | 17.80 | 0.40 | 538.62 | 439.17 | 99.45 | 439.49 |
| 19 | 18.50 | 17.90 | 0.00 | 538.51 | 439.84 | 98.67 | 438.96 |
| 20 | 18.60 | 18.00 | 0.00 | 538.66 | 439.00 | 99.66 | 439.16 |
| 21 | 20.10 | 18.00 | 0.00 | 538.60 | 438.78 | 99.82 | 438.84 |
| 22 | 13.30 | 12.70 | 0.00 | 538.47 | 438.65 | 99.82 | 438.71 |
| 23 | 14.30 | 12.20 | 0.00 | 538.65 | 438.60 | 100.05 | 438.55 |
| 24 | 12.80 | 12.20 | 0.00 | 538.43 | 438.64 | 99.79 | 438.75 |
|
| AVG | 19.13 | 14.22 | 4.12 | 538.63 | 438.54 | 100.09 | 438.91 |
|
| MAX | 25.60 | 18.00 | 8.30 | 538.85 | 439.84 | 100.95 | 439.49 |
| MIN | 12.80 | 12.20 | 0.00 | 538.43 | 437.88 | 98.67 | 438.36 |