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This probabilistic forecast is issued by the Missouri Basin River Forecast Center.
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About this graph
Forecasts for the Floyd River at Merrill are issued as needed during times of high water, but are not routinely available.
Return to Area Map

Upstream Gauge - at Le Mars Upstream Gauge Downstream Gauge Downstream Gauge - at James
Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 14
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 20.00 ft on 09/18/1926
(2) 18.40 ft on 06/07/1934
(3) 18.00 ft on 06/08/1953
(4) 17.60 ft on 03/15/2019
(5) 17.00 ft on 09/21/2018
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.19 ft on 06/24/2020
(2) 17.60 ft on 03/15/2019
(3) 17.00 ft on 09/21/2018
(4) 12.20 ft on 07/31/2010
(5) 10.00 ft on 04/14/2001
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
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
24 230th Street at the east of the bridge at the gage will be flooded.
23 Water reaches the bottom of the bridge at the gauging location on 230th Street.
22 The highest banks and levees are overtopped.
21 the bridge on County Road C38 is overtopped.
20.5 the railroad tracks at the bridge 750 feet upstream of the gage are flooded.
19 approximately 2200 acres of farm land are flooded.
18 the water reaches the bottom of the bridge on County Road C38.
17.5 the levees protecting the sewage treatment lagoons on the left bank of the river are overtopped.
16 flooding begins to affect the eastern edges of the city of Merrill, and about 2000 acres of farm land are flooded.
14 approximately 1600 acres of farm land are flooded.
12 flooding of the low lying farm land begins.
Photos
(1) Upstream View
(2) Downstream View
Additional Information Collapse
How low could the river get?
Collaborative Agencies Collapse
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
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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