Lower Monumental Dam
Monday May 18, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 76.60 | 12.20 | 63.80 | 538.33 | 438.97 | 99.36 | 439.44 |
| 2 | 76.60 | 12.20 | 63.90 | 538.33 | 438.98 | 99.35 | 439.58 |
| 3 | 76.70 | 12.10 | 64.00 | 538.35 | 438.95 | 99.40 | 439.48 |
| 4 | 76.70 | 12.20 | 63.90 | 538.35 | 438.94 | 99.41 | 439.55 |
| 5 | 76.70 | 12.20 | 63.90 | 538.06 | 438.92 | 99.14 | 439.56 |
| 6 | 76.50 | 12.20 | 63.70 | 538.21 | 438.97 | 99.24 | 439.59 |
| 7 | 76.80 | 12.20 | 63.90 | 538.21 | 439.01 | 99.20 | 439.71 |
| 8 | 76.80 | 12.20 | 64.00 | 538.13 | 438.97 | 99.16 | 439.75 |
| 9 | 71.10 | 12.20 | 58.30 | 538.15 | 438.88 | 99.27 | 439.29 |
| 10 | 70.80 | 12.20 | 58.00 | 538.13 | 438.94 | 99.19 | 439.46 |
| 11 | 72.20 | 12.20 | 57.90 | 538.26 | 438.89 | 99.37 | 439.57 |
| 12 | 70.80 | 12.20 | 58.00 | 538.21 | 438.88 | 99.33 | 439.36 |
| 13 | 69.00 | 12.20 | 56.20 | 538.62 | 438.94 | 99.68 | 439.53 |
| 14 | 69.20 | 12.10 | 56.50 | 538.32 | 438.85 | 99.47 | 439.30 |
| 15 | 68.80 | 12.20 | 56.10 | 538.34 | 438.87 | 99.47 | 439.40 |
| 16 | 69.20 | 12.10 | 56.40 | 538.32 | 438.98 | 99.34 | 439.58 |
| 17 | 70.50 | 12.20 | 56.20 | 538.32 | 438.82 | 99.50 | 439.18 |
| 18 | 69.20 | 12.20 | 56.40 | 538.34 | 438.85 | 99.49 | 439.36 |
| 19 | 69.10 | 12.30 | 56.20 | 538.31 | 438.87 | 99.44 | 439.44 |
| 20 | 69.00 | 12.20 | 56.20 | 538.27 | 438.86 | 99.41 | 439.24 |
| 21 | 70.00 | 12.10 | 55.80 | 538.16 | 438.86 | 99.30 | 439.31 |
| 22 | 68.50 | 12.10 | 55.80 | 538.23 | 438.83 | 99.40 | 439.13 |
| 23 | 68.70 | 12.10 | 56.00 | 537.97 | 438.82 | 99.15 | 439.09 |
| 24 | 68.70 | 12.20 | 55.90 | 537.97 | 439.09 | 98.88 | 439.58 |
|
| AVG | 72.01 | 12.18 | 59.04 | 538.25 | 438.91 | 99.33 | 439.44 |
|
| MAX | 76.80 | 12.30 | 64.00 | 538.62 | 439.09 | 99.68 | 439.75 |
| MIN | 68.50 | 12.10 | 55.80 | 537.97 | 438.82 | 98.88 | 439.09 |