Jan. 12, 2015
Current Koocanusa Reservoir elevation: 2,410.2 feet
Current Koocanusa Reservoir inflow: ~4,000 cubic feet per second
Current Libby Dam outflow: 4,000 cfs
Current Kootenai River elevation at Bonners Ferry: 1,746.1 feet
The current outflow from Libby Dam is the minimum allowable flow of 4,000 cfs. The current plan is to hold the outflow at 4,000 cfs and allow the reservoir level to drop slowly.
Corps' water managers are currently making space in the reservoir to meet the flood risk management elevation of 2,410.0 feet by the end of January. This elevation requirement was set by the most recent April-August inflow volume forecast of 6.279 million-acre-feet, which is 107 percent of the 1981-2010 average.
The Northwest River Forecast Center creates daily forecasts for short term projections throughout the Kootenai and Columbia River Basins. These forecasts may be updated multiple times in a day and as conditions change. Links to those forecasts can be found below.
Short term forecasts for Libby Dam elevations and inflows:
Short term forecasts for Libby Dam outflow:
Additionally, projected inflows and reservoir operations at Libby Dam through next summer can be found here:
These modeling results are updated at least monthly and include information on elevations, inflow, and outflow:
Page 1 shows Lake Koocanusa elevation probabilities through next summer
Page 2 shows Libby Dam inflow probabilities through next summer
Page 3 shows Libby Dam outflow probabilities through the summer
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