* WHAT...Heat index values up to 103 expected.
* WHERE...Portions of central, south central, southwest, and west
central Michigan.
* WHEN...From noon to 8 PM EDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Heat Advisory
Until 2026-07-13T16:00:00-04:00
•
National Weather Service
* WHAT...Heat index values up to 103 expected.
* WHERE...Portions of central, south central, southwest, and west
central Michigan.
* WHEN...From noon to 8 PM EDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
GRAND RIVER NEAR EATON RAPIDS, MI
Realtime Data
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Report
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Conditions
1,400
Discharge (cfs)
4.8
Gauge Height (ft)
Streamflow discharge was last observed at 1,400 cfs, and a gauge height of 4.79 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 812 .
Weather today, Tomorrow,
Some notable tributaries include the Thornapple River and the Kalamazoo River. There are several dams on the Grand River in this area, including the Island Mills Dam and the Eaton Rapids Dam. Seasonal trends show that the flow is typically higher in the spring due to snowmelt and precipitation. Interestingly, the Grand River has the longest navigable route of any river in Michigan, with a total length of 252 miles. It is also home to several species of fish, including smallmouth bass and channel catfish.
July 13, 2026
Elevation
855.0 ft
Last Updated
Gage height, feet
4.79 ft
Stream water level elevation above NAVD 1988, in ft