Lower Monumental Dam
Sunday May 31, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 68.30 | 12.20 | 54.00 | 537.99 | 438.89 | 99.10 | 439.38 |
| 2 | 68.10 | 12.20 | 53.90 | 537.96 | 439.04 | 98.92 | 439.35 |
| 3 | 66.80 | 12.20 | 54.10 | 537.97 | 438.92 | 99.05 | 439.44 |
| 4 | 66.50 | 12.10 | 53.70 | 537.98 | 438.78 | 99.20 | 439.16 |
| 5 | 64.80 | 12.20 | 52.00 | 537.67 | 438.84 | 98.83 | 439.34 |
| 6 | 64.60 | 12.20 | 51.90 | 537.92 | 438.84 | 99.08 | 439.28 |
| 7 | 66.30 | 12.20 | 52.00 | 537.91 | 438.86 | 99.05 | 439.33 |
| 8 | 64.80 | 12.20 | 52.00 | 537.90 | 438.89 | 99.01 | 439.09 |
| 9 | 64.70 | 12.10 | 52.00 | 537.91 | 438.84 | 99.07 | 439.22 |
| 10 | 64.70 | 12.20 | 51.90 | 537.91 | 438.82 | 99.09 | 439.09 |
| 11 | 62.80 | 12.10 | 50.10 | 537.97 | 438.73 | 99.24 | 439.06 |
| 12 | 62.80 | 12.10 | 50.00 | 537.97 | 438.73 | 99.24 | 439.04 |
| 13 | 62.90 | 12.10 | 50.20 | 538.15 | 438.73 | 99.42 | 439.13 |
| 14 | 62.50 | 12.20 | 49.70 | 538.12 | 438.71 | 99.41 | 439.09 |
| 15 | 62.70 | 12.10 | 50.00 | 538.16 | 438.71 | 99.45 | 439.12 |
| 16 | 62.90 | 12.10 | 50.20 | 538.21 | 438.67 | 99.54 | 439.04 |
| 17 | 63.10 | 12.10 | 50.40 | 538.25 | 438.68 | 99.57 | 438.99 |
| 18 | 63.10 | 12.10 | 50.40 | 538.27 | 438.66 | 99.61 | 439.02 |
| 19 | 62.70 | 12.10 | 50.00 | 538.29 | 438.64 | 99.65 | 438.77 |
| 20 | 62.70 | 12.10 | 50.00 | 538.33 | 438.62 | 99.71 | 438.86 |
| 21 | 62.70 | 12.10 | 50.00 | 538.36 | 438.62 | 99.74 | 438.95 |
| 22 | 62.60 | 12.20 | 49.90 | 538.41 | 438.69 | 99.72 | 438.98 |
| 23 | 64.20 | 12.10 | 50.00 | 538.43 | 438.58 | 99.85 | 438.77 |
| 24 | 62.70 | 12.10 | 50.00 | 538.49 | 438.55 | 99.94 | 438.81 |
|
| AVG | 64.17 | 12.14 | 51.18 | 538.11 | 438.75 | 99.35 | 439.10 |
|
| MAX | 68.30 | 12.20 | 54.10 | 538.49 | 439.04 | 99.94 | 439.44 |
| MIN | 62.50 | 12.10 | 49.70 | 537.67 | 438.55 | 98.83 | 438.77 |