Flat River at Smyrna, MI
River level and flood forecast · Ionia County
The river is 5.2 ft below flood stage (8.5 ft).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Flat River at Smyrna to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 10.5 ft |
| Moderate flood stage | 9.5 ft |
| Flood stage | 8.5 ft |
| Action stage | 5.5 ft |
| Record crest (September 13, 1986) | 9.05 ft |
What floods at each level
From the National Weather Service, highest first.
- 9.05 ftExpect 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 ftFlooding begins to impact homes and flood basements in low lying areas along the river.
- 7 ftExpect minor flooding of about 30 Double R Ranch Campground sites and in low lying areas adjacent to the river.
- 6 ftExpect minor flooding of low lying areas adjacent to the river and Double R Ranch Campground.
- 5.5 ftRiver is bankfull. Overflow begins in low areas adjacent to the river.
Highest crests on record
- 9.05 ft — September 13, 1986
- 8.5 ft — January 22, 2005
- 7.84 ft — December 22, 2000
- 7.77 ft — January 26, 2005
- 7.72 ft — January 16, 1997
Recent crests: 4.87 ft (February 1, 2024) · 6.25 ft (April 6, 2023) · 5.32 ft (April 8, 2022) · 5.73 ft (June 28, 2021) · 7.01 ft (May 20, 2020)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SMYM4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.