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ALERT: Update on status of the nationwide data transmission error that prevents stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. The USGS has restored the transmission from all of their gauges or has placed them in a seasonal outage (some Alaska gauges). There are a few USGS gauges that the NWS is not yet receiving the new transmissions and NWS is working to get that data by alternate means. A map of the status of USGS gauges is here. The status map of gauge outages from other agencies is here. The situation has greatly improved and will continue to improve but at a slower pace. The outage maps will now be updated once per week on Thursday. We apologize for the service interruption and hope to have the data restored as soon as possible.



Hydrograph River at a Glance Download
Big Sioux River at Sioux Falls I-90 Stage (ft)Flow (cfs)SFLS2(plotting HGIRG) Graph Created (4:18AM Nov 14, 2018)Flood Stage is 12 ft
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Tabular Data (CST)
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Datum: Not Available
Metadata
NOTE: Gauge reading may be affected by ice.

NOTE: 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.

NOTE: Forecasts for the Big Sioux River at Sioux Falls I-90 are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Dell Rapids Upstream Gauge Downstream Gauge Downstream Gauge - at Sioux Falls Maple Street
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 19.80 ft on 04/10/1969
(2) 16.80 ft on 06/23/1984
(3) 16.32 ft on 04/07/1997
(4) 15.80 ft on 06/01/1993
(5) 15.41 ft on 09/27/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.32 ft on 03/25/2011
(2) 15.41 ft on 09/27/2010
(3) 12.40 ft on 03/17/2007
(4) 14.60 ft on 04/24/2001
(5) 16.32 ft on 04/07/1997
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.

Zoom Level:14
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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
21 The levees protecting Sioux Falls are overtopped.
20.5 The levees immediately upstream of the gage will be overtopped.
19.5 Levees downstream on diversion channel will be overtopped if all flow of around 37000 cfs is being diverted.
17 Flooding begins to affect roads, homes, and businesses in Renner.
15 Some farm buildings between Renner and Sioux Falls are threatened by high water.
12 Some agricultural land between 60th Street North and Interstate 90 begins to flood.
11 Minor flooding of some ditches upstream of Sioux Falls begins.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 43.610100° N, Longitude: 96.744444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 1412.66 ft 1424.66 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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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
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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Page last modified: 21-Dec-2016 10:37 PM
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