National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Sioux Falls, SD

Missouri Basin River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (CDT)

Datum: Not Available

Metadata

NOTE: No forecasts are available for this location

NOTE: Graphical forecasts are not available for the Big Sioux River at Hawarden. During times of high water, forecast crest information can be found in the text products.

Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	23
Moderate Flood Stage:	20
Flood Stage:	15
Action Stage:	13
Low Stage (in feet):	-9999

Historic Crests
(1) 27.92 ft on 06/17/2014
(2) 24.90 ft on 05/10/1993
(3) 24.70 ft on 09/27/2010
(4) 24.60 ft on 04/09/1969
(5) 24.20 ft on 06/23/1984
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 27.92 ft on 06/17/2014
(2) 19.40 ft on 05/27/2013
(3) 17.20 ft on 05/10/2012
(4) 20.30 ft on 03/26/2011
(5) 24.70 ft on 09/27/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	Gauge Location	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

If you notice any errors in the below information, please contact our Webmaster
23	Water backs up into the park in Hawarden, and some basements and sewers could begin to have problems.
21.5	Iowa Highway 10 begins to flood.
20	Some farm houses on the South Dakota side of the river are isolated by high water.
19	South Dakota Highway 46 begins to flood.
15	Agricultural flooding begins on the South Dakota side of the river.
12	The lowest banks overflow and begin to flood into sloughs.
Photos (1) Upstream View (2) Downstream View

About This Location

Latitude: 42.998333° N, Longitude: 96.498056° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	15 ft	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	Not Available	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	Not Available	Not Available	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	1147.27 ft	1162.27 ft

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

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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Page last modified: 1-Mar-2019 12:34 AM

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