Major Flood
26 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: LMRI4). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
21 ft
Minor Flood
20 ft
Action Stage
18 ft
What Floods at Each Level
30.5 ft
Water nears the feedhorn of the automated sensor and thus river level data may be lost.
30 ft
Substantial flooding of homes and businesses is ongoing and water approaches or floods portions of Hwy 75.
26 ft
The 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 ft
The wastewater treatment plant will be mostly surrounded by water and several outbuildings along the river may begin to flood.
24 ft
Much 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 ft
The parking lot for the bike trail off of Hwy 75 begins to flood.
22 ft
Approximately 1400 acres of farm land are flooded.
21 ft
Flooding begins to affect 4th Avenue NE in Le Mars.
20.5 ft
160th Street near Highway 60 may begin to flood.
20 ft
Agricultural land begins to flood, and the low lying areas in the western edges of Le Mars begin to flood.
18 ft
The lowest banks within the parks in Le Mars begin to be overtopped and portions of the bike trail along the river are flooded.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 22, 2024 | 27.97 ft | — |
| Jun 7, 1953 | 26.4 ft | 57,000 cfs |
| Sep 20, 2018 | 26.4 ft | — |
About This Gauge
NWS LID
LMRI4
River
Floyd River
County
Plymouth, IA
Coordinates
42.8003°N, 96.1739°W
Get Flood Alerts for Floyd River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Floyd River at Le Mars?
The Floyd River at Le Mars gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Floyd River at Le Mars?
The NWS-defined flood stage for Floyd River at Le Mars is 20 feet. Action stage begins at 18 feet. Moderate flooding starts at 21 feet, and major flooding at 26 feet.
How do I get alerts when Floyd River rises?
Download StormCast free on Google Play, go to River Gauges, and add Floyd River at Le Mars to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Floyd River at Le Mars gauge located?
The gauge is located in Plymouth County, Iowa at coordinates 42.8003°N, 96.1739°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Floyd River
On This River
More Resources
Source & Notes
Data provided by: Observations courtesy of Iowa Flood Center
- 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.