Little Sioux River near Milford
Observed Thu, Sep 24, 3:15 AM CDT
- Flood stage
- 13.00 ft
- Record crest
- 20.40 ft2024
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 20.00 ft |
| Moderate flood | 16.00 ft |
| Minor flood | 13.00 ft |
| Action | 11.00 ft |
- 22.50 ftThe bridge on 190th is overtopped and water reaches the bottom of the bridge on 170th Ave.
- 20.50 ftWater reaches the bottom of the bridge on 190th St.
- 17.50 ftThe floodplain can be as wide as 0.25 mile wide in places.
- 16.50 ftThe lowest portion of 180th St is flooded and water approaches the lowest portion of 190th Ave between 260th and 270th Streets in far southern Dickinson county.
- 13.00 ftFlooding of agricultural and pasture land begins.
- 12.00 ftThe lowest banks overflow with some flooding of low lying areas.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.
Crest history
17 crests on NOAA’s list since 1982.
| # | Date | Stage |
|---|---|---|
| 1 | June 22, 2024 | 20.40 ft |
| 2 | June 25, 2018 | 20.10 ft |
| 3 | March 18, 2019 | 18.02 ft |
| 4 | July 15, 2011 | 17.50 ft |
| 5 | June 19, 2014 | 17.37 ft |
| 6 | August 23, 2007 | 16.84 ft |
| 7 | March 17, 2010 | 16.65 ft |
| 8 | April 9, 2006 | 15.91 ft |
| 9 | June 14, 2001 | 15.25 ft |
| 10 | March 9, 2020 | 15.19 ft |
| 11 | March 24, 1997 | 14.28 ft |
| 12 | May 3, 2016 | 14.00 ft |
| 13 | March 1, 1982 | 13.95 ft |
| 14 | May 31, 2012 | 13.70 ft |
| 15 | April 5, 2023 | 13.59 ft |
| 16 | March 31, 1996 | 12.80 ft |
| 17 | May 24, 2017 | 12.50 ft |
Most recent crests
- June 22, 2024: 20.40 ft
- April 5, 2023: 13.59 ft
- March 9, 2020: 15.19 ft
- March 18, 2019: 18.02 ft
- June 25, 2018: 20.10 ft
- May 24, 2017: 12.50 ft
- May 3, 2016: 14.00 ft
- June 19, 2014: 17.37 ft
- May 31, 2012: 13.70 ft
- July 15, 2011: 17.50 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamLittle Sioux River at Montgomery
- DownstreamLittle Sioux River at Spencer
- West Okoboji Lake at Milford
- Milford Creek at Lower Gar Lake Outlet
- East Okoboji Lake at East/West Okoboji Lake Channel
- West Fork Little Sioux River at Lake Park
- East Okoboji Lake at Spirit Lake
- Little Sioux River at Spencer / Highway 18
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.