SNOFLO
 


       
       

MICHIGAN FLOW REPORT

April 7 2025
       

Streamflow levels across Michigan are currently 136.0% of normal, with the Grand River At Grand Rapids reporting the highest discharge in the state with 13500cfs and gauge stage of 12.54 ft. Meanwhile, the Huron River At Ann Arbor is seeing a spike in streamflows today after experiencing a 13.51% increase since yesterday, and currently running at 1260cfs.

Maximum gauge stage in the state was last observed at the Grand River At Ionia, currently reporting a stage of 18.7ft. The Middle River Rouge Near Garden City in the Detroit watershed is surging for this time of year at 589cfs, about 230.94% of normal.

Statewide Warnings & Alerts

April 7 2025

Michigan Flow History


Michigan is characterized by a temperate climate, and the state is home to several major surface flows, including the Great Lakes and their tributaries, the Grand River, St. Clair River, and Detroit River. The state has over 1,000 dams and reservoirs, with the largest being the 5,000-acre Houghton Lake. Michigan has a diverse hydrology, with wetland systems, streams, and inland lakes contributing to the water cycle. The state's snowpack is a significant contributor to hydrology, with winter snowfall providing a significant portion of the water supply for the Great Lakes and their tributaries. Additionally, the state is prone to flooding due to its topography and geographic location, and heavy rainfall events can result in flash flooding and riverine flooding.

Streamflow Distribution