The Madison River flows can vary day to day and season to season. Typically, the Madison River flows are at their highest during the spring runoff when the snow melts and water is rapidly released from Hebgen Dam and Ennis Lake. The length and severity of the spring runoff is determined by the snowpack each year. One thing for certain, fishing during the runoff does not suck. Don't be fooled by this misconception. The lowest flows on the Madison River are experienced in the late summer and dead of winter. Flows under 900 CFS can make for some skinny water, but nonetheless, the Madison River stays floatable year-round.

Current Ruby River Flows from USGS Water Data