Libby Dam & Lake Koocanusa
July 2026
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet | Midnight Storage kaf |
| 1 | 6062 | 253 | 14 | 35.39 | 11.00 | 11.00 | 0.00 | 2438.83 | 2438.31 | 2120.71 | 317.60 | |
| 2 | 6059 | 252 | 14 | 31.43 | 11.00 | 11.00 | 0.00 | 2439.78 | 2439.34 | 2120.69 | 318.65 | 4121.20 |
| 3 | 5709 | 238 | 13 | 28.36 | 10.00 | 10.00 | 0.00 | 2440.63 | 2440.24 | 2120.38 | 319.86 | 4157.60 |
| 4 | 5705 | 238 | 13 | 26.04 | 10.00 | 10.00 | 0.00 | 2441.37 | 2441.02 | 2120.37 | 320.65 | 4189.50 |
| 5 | 5710 | 238 | 13 | 24.35 | 10.00 | 10.00 | 0.00 | 2442.03 | 2441.72 | 2120.36 | 321.36 | 4217.90 |
| 6 | 5719 | 238 | 13 | 23.74 | 10.00 | 10.00 | 0.00 | 2442.66 | 2442.38 | 2120.36 | 322.02 | 4245.20 |
| 7 | 5159 | 215 | 13 | 21.03 | 9.00 | 9.00 | 0.00 | 2443.21 | 2442.96 | 2120.06 | 322.90 | 4269.10 |
| 8 | 5243 | 218 | 13 | 19.52 | 9.00 | 9.00 | 0.00 | 2443.69 | 2443.47 | 2120.08 | 323.39 | 4289.90 |
| 9 | 5243 | 218 | 13 | 20.43 | 9.00 | 9.00 | 0.00 | 2444.21 | 2443.96 | 2120.08 | 323.88 | 4312.60 |
| 10 | 5249 | 219 | 13 | 20.01 | 9.00 | 9.00 | 0.00 | 2444.71 | 2444.47 | 2120.08 | 324.39 | 4334.50 |
| 11 | 5252 | 219 | 12 | 19.16 | 9.00 | 9.00 | 0.00 | 2445.17 | 2444.93 | 2120.08 | 324.85 | 4354.60 |
| 12 | 5246 | 219 | 12 | 17.40 | 9.00 | 9.00 | 0.00 | 2445.55 | 2445.35 | 2120.08 | 325.27 | 4371.30 |
| 13 | 5292 | 220 | 12 | 17.64 | 9.00 | 9.00 | 0.00 | 2445.94 | 2445.76 | 2120.11 | 325.65 | 4388.40 |
| 14 | 5337 | 222 | 11 | 16.32 | 9.00 | 9.00 | 0.00 | 2446.27 | 2446.11 | 2120.11 | 326.00 | 4403.00 |
| 15 | 5332 | 222 | 11 | 15.45 | 9.00 | 9.00 | 0.00 | 2446.56 | 2446.43 | 2120.11 | 326.32 | 4415.80 |
| 16 | 5328 | 222 | 11 | 15.46 | 9.00 | 9.00 | 0.00 | 2446.85 | 2446.72 | 2120.10 | 326.62 | 4428.60 |
| 17 | 5339 | 222 | 11 | 15.01 | 9.00 | 9.00 | 0.00 | 2447.12 | 2447.00 | 2120.11 | 326.89 | 4440.50 |
| 18 | 5336 | 222 | 11 | 14.13 | 9.00 | 9.00 | 0.00 | 2447.35 | 2447.22 | 2120.10 | 327.12 | 4450.70 |
| 19 | 5329 | 222 | 11 | 14.14 | 9.00 | 9.00 | 0.00 | 2447.58 | 2447.47 | 2120.14 | 327.33 | 4460.90 |
| 20 | 5339 | 222 | 11 | 14.82 | 9.00 | 9.00 | 0.00 | 2447.84 | 2447.73 | 2120.10 | 327.63 | 4472.40 |
| 21 | 5327 | 222 | 11 | 13.25 | 9.00 | 9.00 | 0.00 | 2448.03 | 2447.96 | 2120.09 | 327.87 | 4480.90 |
| 22 | 5342 | 223 | 11 | 12.58 | 9.00 | 9.00 | 0.00 | 2448.19 | 2448.13 | 2120.10 | 328.03 | 4488.00 |
| 23 | 5345 | 223 | 11 | 12.36 | 9.00 | 9.00 | 0.00 | 2448.34 | 2448.26 | 2120.10 | 328.16 | 4494.60 |
| 24 | 5347 | 223 | 11 | 11.69 | 9.00 | 9.00 | 0.00 | 2448.46 | 2448.40 | 2120.10 | 328.30 | 4500.00 |
| 25 | 5340 | 223 | 11 | 11.91 | 9.00 | 9.00 | 0.00 | 2448.59 | 2448.53 | 2120.11 | 328.42 | 4505.80 |
| 26 | 5338 | 222 | 11 | 11.25 | 9.00 | 9.00 | 0.00 | 2448.69 | 2448.63 | 2120.11 | 328.52 | 4510.20 |
| 27 | 5328 | 222 | 11 | 11.02 | 9.00 | 9.00 | 0.00 | 2448.78 | 2448.72 | 2120.10 | 328.62 | 4514.20 |
| 28 | 5284 | 220 | 11 | 10.80 | 9.00 | 9.00 | 0.00 | 2448.86 | 2448.81 | 2120.10 | 328.71 | 4517.80 |
| 29 | 5267 | 219 | 11 | 9.90 | 9.00 | 9.00 | 0.00 | 2448.90 | 2448.88 | 2120.10 | 328.78 | 4519.60 |
| 30 | 5278 | 220 | 12 | 9.45 | 9.00 | 9.00 | 0.00 | 2448.92 | 2448.92 | 2120.08 | 328.84 | 4520.50 |
| 31 | | | | 9.45 | 9.00 | 9.00 | 0.00 | 2448.94 | 2448.94 | 2120.07 | 328.87 | 4521.40 |
|
| TOT | 162186 | | 355 | | | | | | | | | |
| AVG | 5406 | 225 | 12 | 17.21 | 9.26 | 9.26 | 0.00 | 2445.87 | 2445.70 | 2120.17 | 325.53 | 4396.56 |
|
| MAX | 6062 | | | 35.39 | 11.00 | 11.00 | 0.00 | 2448.94 | 2448.94 | 2120.71 | 328.87 | 4521.40 |
| MIN | 5159 | | | 9.45 | 9.00 | 9.00 | 0.00 | 2438.83 | 2438.31 | 2120.06 | 317.60 | 4121.20 |