Assessing Flathead Lake Water Levels
In the summer of 2023, Flathead Lake experienced record-low water levels. This rare event negatively impacted recreational activities and caused loss of income in the summer. Here is all you need to know to understand the cause of low Flathead Lake water levels and what we can expect in the future:
What led to low Flathead Lake water levels in 2023?
Flathead Lake is fed every spring by melting mountain snowpack followed by a rainy season. To prevent flooding, the SKQ Dam drains the lake to ten feet below full pool of 2,893 feet during this period. However, in 2023, warmer temperatures caused less snowfall, which melted earlier than usual. To make matters worse, springtime rainfall was less than expected as well, so the water released through the dam was not replenished. Further, the higher temperatures contributed to faster evaporation and an increased demand for agricultural irrigation from the lake.
How did it affect recreational activities in the area?
The change to Flathead Lake water levels posed significant challenges to local residents and business owners. Recreation on the water was disrupted as docks became inaccessible and exposed rocks and other objects posed a hazard to boats and swimmers. As a result, businesses such as marina owners, fishermen, and boat rentals were sometimes unable to operate. This had a negative effect on the Flathead Valley’s summer income. Local politicians got involved by introducing new legislation aimed at preventing low water levels to protect the economic stability of the area.
What measures can be taken to prevent low water levels?
Energy Keepers, who owns and operates the SKQ Dam, petitioned the U.S. Army Corps of Engineers to change their flood risk management protocol, now draining the lake only eight feet below full pool in the spring in case of drought. Additional measures were taken to lessen the demand for irrigation in agriculture, industry, and private use by improving upstream irrigation efficiency and reducing waste. Likewise, early snowpack monitoring methods were implemented to better forecast how much water should be released through the dam in the springtime.
How were Flathead Lake water levels in 2024, and how are they expected to be in the future?
Thankfully, these proactive strategies were successful in 2024! Flathead Lake water levels reached full pool in June and remained stable throughout the summer. While most of western North America is also facing warming temperatures, drought, and low water levels, Flathead’s residents, businesses, and policymakers have shown that through collaboration, we can maintain Flathead Lake water levels in years to come.
Safety is the top priority for Go Sail Montana, and we will always keep you apprised of sailing conditions as you plan your voyage. We only allow our sailboats on the lake if we are sure it is safe to do so. You can check the current water level anytime with the Flathead Lake Bio Station, and for more detailed information about the causes of 2023’s low water levels, read their full breakdown here.