Rivers in South Dakota

Vermillion River near Wakonda

Clay County, South DakotaNWS WKAS2USGS 06479000Sioux Falls office

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood17.00 ft
Moderate flood15.50 ft
Minor flood14.00 ft
Action13.00 ft
  1. 19.50 ftWater reaches the bottom of the bridge on 461st Avenue near Lodi, and the highest levees will be overtopped.
  2. 19.00 ftThe intersection of Highway 19 and 46 begins to flood. The bridge on 302nd Street 1 mile east of Colfax Corner is overtopped.
  3. 18.50 ftThe bridge on highway 19 near Lodi, and the bridge on 461st Avenue northeast of Colfax Corner, are both overtopped.
  4. 18.00 ftWater reaches the bottom of the bridge on 303rd Street between Lodi and Colfax Corner.
  5. 17.50 ftThe bridge on 304th Street west of Dalesburg is overtopped. Water reaches the bottom of the bridge on Highway 19 at the gauge location.
  6. 17.00 ftHighway 19 south of Centerville is flooded. Water reaches the bottom of the bridge on 302nd Street east of Colfax Corner, and many of the levees will start to be overtopped with approximately 25000 acres flooded between Davis and Vermillion.
  7. 16.50 ftHwy 19 north of the gage location begins to flood. University Rd and 312th near their intersection begin to flood. Water reaches the bottom of the bridge on 461st Avenue northeast of Colfax Corner, and major flooding of agricultural land south of Davis begins.
  8. 16.00 ftWater reaches the bottom of the bridge on 304th Street west of Dalesburg, Highway 19 near 299th Street begins to flood, 302nd Street near Colfax Corner will be flooded, and approximately 10000 acres could be flooded between Centerville and Vermillion.
  9. 15.50 ftWater reaches the bottom of the bridge on highway 19 near Lodi, and 306th Street near Hub City will flood along with several other county roads.
  10. 15.00 ftHighway 19 south of Centerville could start flooding if the levees fail.
  11. 14.00 ftMinor flooding of low lying areas begins in non-leveed areas and some agricultural land will flood if the levees fail.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding9%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Crest history

78 crests on NOAA’s list since 1944.

#DateStage
1June 22, 202418.93 ft
2March 15, 201918.11 ft
3June 23, 198417.62 ft
4March 17, 201017.60 ft
5June 25, 201817.50 ft
6March 20, 201117.38 ft
7April 24, 199517.34 ft
8July 7, 199317.33 ft
9April 6, 196917.17 ft
10April 26, 200117.11 ft
11June 10, 200817.05 ft
12June 22, 198317.03 ft
13June 17, 201416.96 ft
14April 1, 196016.94 ft
15March 31, 199716.93 ft
16March 28, 196216.75 ft
17May 17, 201616.72 ft
18June 13, 194716.63 ft
19March 18, 200716.58 ft
20March 25, 197916.57 ft
21June 19, 195416.56 ft
22March 9, 199416.51 ft
23April 22, 198616.50 ft
24June 21, 195716.48 ft
25March 22, 197816.44 ft

Most recent crests

  • July 31, 2025: 6.27 ft
  • June 22, 2024: 18.93 ft
  • April 5, 2023: 10.46 ft
  • March 9, 2020: 15.10 ft
  • March 15, 2019: 18.11 ft
  • June 25, 2018: 17.50 ft
  • May 1, 2017: 12.64 ft
  • May 17, 2016: 16.72 ft
  • June 10, 2015: 11.00 ft
  • June 17, 2014: 16.96 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. 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. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. Gauge reading may be affected by ice.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.