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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Flat River at Smyrna are issued as needed during times of high water, but are not routinely available.
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Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 10.5
Moderate Flood Stage: 9.5
Flood Stage: 8.5
Action Stage: 5.5
Low Stage (in feet): -9999

Historic Crests
(1) 9.05 ft on 09/13/1986
(2) 8.50 ft on 01/22/2005
(3) 7.84 ft on 12/22/2000
(4) 7.77 ft on 01/26/2005
(5) 7.72 ft on 01/16/1997
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(P): Preliminary values subject to further review.

Recent Crests
(1) 5.73 ft on 06/28/2021
(2) 7.01 ft on 05/20/2020
(3) 6.87 ft on 03/17/2019
(4) 6.63 ft on 02/23/2018
(5) 5.86 ft on 04/07/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.30 ft on 09/09/1953
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
9.05 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 Flooding begins to impact homes and flood basements in low lying areas along the river.
7 Expect minor flooding of about 30 Double R Ranch Campground sites and in low lying areas adjacent to the river.
6 Expect minor flooding of low lying areas adjacent to the river and Double R Ranch Campground.
5.5 River is bankfull. Overflow begins in low areas adjacent to the river.

Other Real-time and/or Archive Data Sources:

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How low could the river get?
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Grand Rapids Weather Forecast Office
4899 Tim Dougherty Drive SE
Grand Rapids, MI 49512-4034
(616) 949-0643
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Page last modified: 2-Nov-2020 7:30 PM
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