Major Flood
25 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
23 ft
Minor Flood
21 ft
Action Stage
13.5 ft
What Floods at Each Level
25 ft
Expect major flooding of Ionia Fairgrounds and businesses and residences in low lying areas near the river. Railroad tracks and several additional businesses flooded in vicinity of Fairgrounds along Steele Street. Homes along Quarry Road flooded.
23 ft
Expect moderate flooding of several roads, businesses, and residences, in the Ionia area and of structures located in the Ionia Fairgrounds. Water halfway up windows on automobile building at Ionia Fairgrounds. Water begins to flood parking lot of Dollar General store, Save-a-Lot, and the Ionia Secretary of State office. Homes along Quarry Road begin to flood.
21 ft
Expect minor flooding of several buildings in the Ionia Fairgrounds, a shopping mall near the Fairgrounds, and several businesses and residences in the southern portion of Ionia.
18 ft
Water surrounds automobile building at Ionia Fairgrounds.
16 ft
Expect extensive lowland overflow to occur.
15 ft
High water affects North Drive on Ionia Fairgrounds.
13.5 ft
River is bankfull. Minor overflow begins in low lying areas along the river near and across from the Ionia Fairground.
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 |
|---|---|---|
| Apr 20, 2013 | 24.69 ft | 25,100 cfs |
| Feb 23, 2018 | 24.4 ft | 24,200 cfs |
| Mar 20, 1948 | 24.3 ft | — |
About This Gauge
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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 Grand River at Ionia?
The Grand River at Ionia gauge is maintained by USGS (site 04116000) 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 Grand River at Ionia?
The NWS-defined flood stage for Grand River at Ionia is 21 feet. Action stage begins at 13.5 feet. Moderate flooding starts at 23 feet, and major flooding at 25 feet.
How do I get alerts when Grand River rises?
Download StormCast free on Google Play, go to River Gauges, and add Grand River at Ionia 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 Grand River at Ionia gauge located?
The gauge is located in Ionia County, Michigan at coordinates 42.9720°N, 85.0692°W. USGS site number: 04116000. Data is provided by the U.S. Geological Survey and the National Weather Service.
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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.