Name: Flathead Lake water-level time series
Creator: Lakebrief

Question 1

What is the current water level at Flathead Lake?

Accepted Answer

Flathead Lake's current water level is shown at the top of this page, sourced from USGS gauge 12371550 and updated continuously. The 7-day trend, full-pool comparison, and a multi-year history chart are all on this page.

Question 2

What is the full pool elevation for Flathead Lake?

Accepted Answer

Flathead Lake has a full pool elevation of 2893 ft (Somers). Surface area at full pool is 126,080 acres.

Question 3

How is Flathead Lake's water level measured?

Accepted Answer

Water-surface elevation for Flathead Lake is measured by USGS gauge 12371550. Lakebrief polls the upstream feed continuously and renders the latest reading, recent trend, and multi-year context.

Question 4

What is the historical low water level for Flathead Lake?

Accepted Answer

The lowest recorded modern elevation for Flathead Lake is approximately 2882.1 ft. The low-water advisory threshold for the dashboard is 2885 ft.

Flathead Lake water level