Major Flood
12.5 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
11 ft
Minor Flood
10 ft
Action Stage
7 ft
What Floods at Each Level
20 ft
FEMA 0.2 percent flood level. Impacts comperable to the flood of record. Widespread flooding to low lying portions of Warren. Water up to second story level of some buildings can be expected.
16.5 ft
FEMA 1 percent flood level. Severe flooding will occur throughout the central sections of Warren. Residents living along the river should prepare for major flood losses.
14.8 ft
Major flooding will occur in the City of Warren. Floodwaters will spread to Niles Road. Residents living along the river should prepare for major flood losses.
14 ft
Southwest Main Avenue inundated. Areas near the river south of Market Street flooded.
13 ft
Property near the river south of Market Street flooded, including South Park and Pine Avenue.
12.5 ft
Southern portions of South Park Avenue, Civitella Streets, and Pine Avenues flooded. Berkins Park inundated.
12 ft
Flooding will begin along Pine Avenue.
11.5 ft
Floodwaters will spread to Lynwood Drive and Olian Avenue.
11 ft
Flooding will affect property along Tod Avenue and Lovers Lane Drive.
10 ft
River is out of banks, southern portions of South Park Road threatened. Flooding can be expected at Walnut and Beaver, along South Park Avenue and along Hayden Street.
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 |
|---|---|---|
| Mar 25, 1913 | 21 ft | — |
| Jan 21, 1959 | 16.7 ft | — |
| Jul 22, 2003 | 14.88 ft | — |
About This Gauge
USGS Site
NWS LID
WRNO1
River
Mahoning River
County
Trumbull, OH
Coordinates
41.2339°N, 80.8233°W
Get Flood Alerts for Mahoning 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 Mahoning River at Warren?
The Mahoning River at Warren gauge is maintained by USGS (site 411402080492400) 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 Mahoning River at Warren?
The NWS-defined flood stage for Mahoning River at Warren is 10 feet. Action stage begins at 7 feet. Moderate flooding starts at 11 feet, and major flooding at 12.5 feet.
How do I get alerts when Mahoning River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mahoning River at Warren 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 Mahoning River at Warren gauge located?
The gauge is located in Trumbull County, Ohio at coordinates 41.2339°N, 80.8233°W. USGS site number: 411402080492400. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey