Flat River at Smyrna

1. 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.
2. 8.50 ftFlooding begins to impact homes and flood basements in low lying areas along the river.
3. 7.00 ftExpect minor flooding of about 30 Double R Ranch Campground sites and in low lying areas adjacent to the river.
4. 6.00 ftExpect minor flooding of low lying areas adjacent to the river and Double R Ranch Campground.
5. 5.50 ftRiver is bankfull. Overflow begins in low areas adjacent to the river.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• February 1, 2024: 4.87 ft
• April 6, 2023: 6.25 ft
• April 8, 2022: 5.32 ft
• June 28, 2021: 5.73 ft
• May 20, 2020: 7.01 ft
• March 17, 2019: 6.87 ft
• February 23, 2018: 6.63 ft
• April 7, 2017: 5.86 ft
• April 2, 2016: 6.15 ft
• April 12, 2015: 5.90 ft

• Grand River at Lowell
• Grand River at Ionia
• Grand River at Ada
• Rogue River at Rockford
• Grand River at Comstock Park
• Fish Creek at Crystal
• Thornapple River at Caledonia
• Grand River at North Park St at Grand Rapids

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. 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.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.