Floyd River at Le Mars
Observed Mon, Sep 21, 11:00 PM CDT
- Flood stage
- 20.00 ft
- Record crest
- 27.97 ft2024
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 26.00 ft |
| Moderate flood | 21.00 ft |
| Minor flood | 20.00 ft |
| Action | 18.00 ft |
- 30.50 ftWater nears the feedhorn of the automated sensor and thus river level data may be lost.
- 30.00 ftSubstantial flooding of homes and businesses is ongoing and water approaches or floods portions of Hwy 75.
- 26.00 ftThe wastewater treatment plant in Le Mars begins to flood. At least a couple of houses on the north side of Le Mars may be in danger of flooding.
- 25.00 ftThe wastewater treatment plant will be mostly surrounded by water and several outbuildings along the river may begin to flood.
- 24.00 ftMuch of the low lying area around the airport in Le Mars is flooded as is the northern portions of the runway. Approximately 2100 acres of farm land are flooded.
- 23.00 ftThe parking lot for the bike trail off of Hwy 75 begins to flood.
- 22.00 ftApproximately 1400 acres of farm land are flooded.
- 21.00 ftFlooding begins to affect 4th Avenue NE in Le Mars.
- 20.50 ft160th Street near Highway 60 may begin to flood.
- 20.00 ftAgricultural land begins to flood, and the low lying areas in the western edges of Le Mars begin to flood.
- 18.00 ftThe lowest banks within the parks in Le Mars begin to be overtopped and portions of the bike trail along the river are flooded.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 26, 2026.
Crest history
28 crests on NOAA’s list since 1953.
| # | Date | Stage |
|---|---|---|
| 1 | June 23, 2024 | 27.97 ft |
| 2 | June 8, 1953 | 26.40 ft |
| 3 | September 21, 2018 | 26.40 ft |
| 4 | March 14, 2019 | 25.84 ft |
| 5 | June 21, 1996 | 24.50 ft |
| 6 | April 3, 1973 | 24.40 ft |
| 7 | March 29, 1962 | 24.10 ft |
| 8 | May 27, 2013 | 24.00 ft |
| 9 | June 21, 1983 | 24.00 ft |
| 10 | April 4, 1969 | 23.90 ft |
| 11 | March 23, 1979 | 23.50 ft |
| 12 | March 29, 1960 | 22.80 ft |
| 13 | March 28, 1994 | 22.50 ft |
| 14 | April 1, 1965 | 22.00 ft |
| 15 | June 22, 1984 | 22.00 ft |
| 16 | July 15, 1993 | 21.70 ft |
| 17 | July 10, 1982 | 21.60 ft |
| 18 | February 9, 1966 | 21.50 ft |
| 19 | April 24, 1985 | 21.10 ft |
| 20 | March 15, 2010 | 20.88 ft |
| 21 | March 21, 1954 | 20.80 ft |
| 22 | June 20, 2014 | 20.50 ft |
| 23 | July 31, 2025 | 20.10 ft |
| 24 | February 21, 1974 | 20.00 ft |
| 25 | March 4, 1970 | 19.00 ft |
Most recent crests
- July 31, 2025: 20.10 ft
- June 23, 2024: 27.97 ft
- March 23, 2023: 12.64 ft
- May 27, 2020: 13.55 ft
- March 14, 2019: 25.84 ft
- September 21, 2018: 26.40 ft
- June 20, 2014: 20.50 ft
- May 27, 2013: 24.00 ft
- March 15, 2010: 20.88 ft
- April 14, 2001: 16.00 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.