Major Flood
10.5 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
9.5 ft
Minor Flood
8.5 ft
Action Stage
5.5 ft
What Floods at Each Level
9.05 ft
Expect major flooding of campground sites and evacuation of campers in Double R Ranch Campground during the camping season. Approximately a dozen homes have water in their basements.
8.5 ft
Flooding begins to impact homes and flood basements in low lying areas along the river.
7 ft
Expect minor flooding of about 30 Double R Ranch Campground sites and in low lying areas adjacent to the river.
6 ft
Expect minor flooding of low lying areas adjacent to the river and Double R Ranch Campground.
5.5 ft
River is bankfull. Overflow begins in low areas adjacent to the river.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 12, 1986 | 9.05 ft | 4,700 cfs |
| Jan 21, 2005 | 8.5 ft | — |
| Dec 21, 2000 | 7.84 ft | — |
About This Gauge
Get Flood Alerts for Flat River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Flat River at Smyrna?
The Flat River at Smyrna gauge is maintained by USGS (site 04116500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Flat River at Smyrna?
The NWS-defined flood stage for Flat River at Smyrna is 8.5 feet. Action stage begins at 5.5 feet. Moderate flooding starts at 9.5 feet, and major flooding at 10.5 feet.
How do I get alerts when Flat River rises?
Download StormCast free on Google Play, go to River Gauges, and add Flat River at Smyrna to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Flat River at Smyrna gauge located?
The gauge is located in Ionia County, Michigan at coordinates 43.0528°N, 85.2647°W. USGS site number: 04116500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
- Stage may be affected by ice during winter months.