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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS) at a repurposed A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id:

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

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Hydrograph River at a Glance Download
Vermillion River near Davis Stage (ft)Flow (cfs)DVSS2(plotting HGIRZ) Graph Created (11:04AM Feb 23, 2024)Flood Stage is 11 ft
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Tabular Data (UTC)
Tabular Data (CST)
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Datum: NGVD29
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: Gauge readings not routinely updated during non-flooding situations.

NOTE: Forecasts for the Vermillion River near Davis are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Chancellor Upstream Gauge Downstream Gauge Downstream Gauge - near Wakonda
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 13
Flood Stage: 11
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 16.40 ft on 03/15/2010
(2) 16.20 ft on 03/15/2019
(3) 15.75 ft on 04/07/1969
(4) 15.60 ft on 07/05/1993
(5) 15.10 ft on 06/22/1984
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.59 ft on 04/03/2023
(2) 12.20 ft on 03/07/2020
(3) 16.20 ft on 03/15/2019
(4) 14.40 ft on 06/23/2018
(5) 12.60 ft on 06/18/2014
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

Zoom Level:14
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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
20.5 The bridge at the gauge site on 461st Ave is overtopped.
17 The lowest portions of 461st Ave north of the gauge site begin to flood.
16.5 The bridge 1 mile west of Davis on Highway 18 is overtopped, and the water reaches the bottom of the bridge 1 mile northwest of Davis on 460th Avenue.
15.5 Water reaches the bottom of the bridge 1 mile southwest of Davis on 286th Street.
15 Major flooding of agricultural land begins, flooding approximately 25000 acres between Davis and Vermillion. The town of Davis and several rural roads also begin flooding.
14.5 The higher banks and levees get overtopped, and flooding of some rural roads south of Davis begins. Also 280th Street between 459th and 460th Avenue is flooded.
13.5 Water reaches the bottom of the bridge 1 mile west of Davis on Highway 18.
13 Moderate flooding of agricultural land begins.
12 Several houses just west of Davis are surrounded by water.
11 Agricultural flooding begins
10 The lowest banks begin to be overtopped with some low lying areas flooded.
(1) Downstream View (6/13/2023)
(2) Upstream View (6/13/2023)
About This Location Collapse

Latitude: 43.237222° N, Longitude: 96.983333° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 1226.47 1237.47 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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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: 30-Oct-2020 4:09 PM
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