Floyd River at Le Mars
Highest listed crest 27.97 ftFlood stage 20.0 ft28 crests since 1953
The Floyd River at Le Mars crested at major flood stage 3 times among the 28 crests the National Weather Service lists from 1953 to 2025. The highest, 27.97 ft on June 23, 2024, was major flooding, 7.97 feet above flood stage. 5 other gauges on the Floyd River crested above flood stage within a week of it, 4 at their own highest listed crest.
The gauge
- Highest listed crest
- 27.97 ft
- June 23, 2024
- Flood stage
- 20.0 ft
- Major flooding from 26.0 ft
- Crests at major
- 3
- 58th of 203 gauges in Iowa
- Most recent flood crest
- July 31, 2025
- 20.10 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 18.0 | 1 | Mar 4, 1970 |
| Flood stage (minor) | 20.0 | 5 | Jul 31, 2025 |
| Moderate flood stage | 21.0 | 16 | Mar 14, 2019 |
| Major flood stage | 26.0 | 3 | Jun 23, 2024 |
Every listed crest
28 crests from 1953 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Jun 23, 2024 | 27.97 | +7.97 | Major |
| 2 | Jun 8, 1953 | 26.40 | +6.40 | Major |
| 3 | Sep 21, 2018 | 26.40 | +6.40 | Major |
| 4 | Mar 14, 2019 | 25.84 | +5.84 | Moderate |
| 5 | Jun 21, 1996 | 24.50 | +4.50 | Moderate |
| 6 | Apr 3, 1973 | 24.40 | +4.40 | Moderate |
| 7 | Mar 29, 1962 | 24.10 | +4.10 | Moderate |
| 8 | Jun 21, 1983 | 24.00 | +4.00 | Moderate |
| 9 | May 27, 2013 | 24.00 | +4.00 | Moderate |
| 10 | Apr 4, 1969 | 23.90 | +3.90 | Moderate |
| 11 | Mar 23, 1979 | 23.50 | +3.50 | Moderate |
| 12 | Mar 29, 1960 | 22.80 | +2.80 | Moderate |
| 13 | Mar 28, 1994 | 22.50 | +2.50 | Moderate |
| 14 | Apr 1, 1965 | 22.00 | +2.00 | Moderate |
| 15 | Jun 22, 1984 | 22.00 | +2.00 | Moderate |
| 16 | Jul 15, 1993 | 21.70 | +1.70 | Moderate |
| 17 | Jul 10, 1982 | 21.60 | +1.60 | Moderate |
| 18 | Feb 9, 1966 | 21.50 | +1.50 | Moderate |
| 19 | Apr 24, 1985 | 21.10 | +1.10 | Moderate |
| 20 | Mar 15, 2010 | 20.88 | +0.88 | Minor |
| 21 | Mar 21, 1954 | 20.80 | +0.80 | Minor |
| 22 | Jun 20, 2014 | 20.50 | +0.50 | Minor |
| 23 | Jul 31, 2025 | 20.10 | +0.10 | Minor |
| 24 | Feb 21, 1974 | 20.00 | 0.00 | Minor |
| 25 | Mar 4, 1970 | 19.00 | −1.00 | Action |
| 26 | Apr 14, 2001 | 16.00 | −4.00 | Below flood stage |
| 27 | May 27, 2020 | 13.55 | −6.45 | Below flood stage |
| 28 | Mar 23, 2023 | 12.64 | −7.36 | Below flood stage |
The worst floods along the Floyd River
For this gauge's highest crests, the other gauges on the Floyd River that crested above flood stage within a week.
June 23, 2024: 27.97 ft here, major flooding
June 8, 1953: 26.40 ft here, major flooding
Gauges on the Floyd River
Flood gauges sharing the river's name, linked within 80 miles of one another.
Other gauges in Plymouth County
Plymouth County: every hazard · River floods across the country · Iowa
NOAA National Water Prediction Service, gauge LMRI4, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.