Rivers in Ohio
Mahoning River at Warren
Below flood stage
2.97ftStage
Observed Wed, Sep 23, 12:30 AM EDT
- Flood stage
- 10.00 ft
- Record crest
- 21.00 ft1913
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 12.50 ft |
| Moderate flood | 11.00 ft |
| Minor flood | 10.00 ft |
| Action | 7.00 ft |
- 20.00 ftFEMA 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.
- 16.50 ftFEMA 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.
- 14.80 ftMajor 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.
- 14.00 ftSouthwest Main Avenue inundated. Areas near the river south of Market Street flooded.
- 13.00 ftProperty near the river south of Market Street flooded, including South Park and Pine Avenue.
- 12.50 ftSouthern portions of South Park Avenue, Civitella Streets, and Pine Avenues flooded. Berkins Park inundated.
- 12.00 ftFlooding will begin along Pine Avenue.
- 11.50 ftFloodwaters will spread to Lynwood Drive and Olian Avenue.
- 11.00 ftFlooding will affect property along Tod Avenue and Lovers Lane Drive.
- 10.00 ftRiver 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.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 8% |
| Moderate flooding | 6% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 22, 2026.
Crest history
23 crests on NOAA’s list since 1913.
| # | Date | Stage |
|---|---|---|
| 1 | March 26, 1913 | 21.00 ft |
| 2 | January 22, 1959 | 16.70 ft |
| 3 | July 23, 2003 | 14.88 ft |
| 4 | February 11, 1959 | 13.70 ft |
| 5 | March 5, 1964 | 12.80 ft |
| 6 | September 13, 1979 | 12.61 ft |
| 7 | March 11, 1964 | 12.50 ft |
| 8 | April 17, 2018 | 12.15 ft |
| 9 | May 13, 1956 | 12.10 ft |
| 10 | February 7, 2008 | 12.01 ft |
| 11 | March 1, 2011 | 11.81 ft |
| 12 | April 13, 1994 | 11.35 ft |
| 13 | April 5, 1957 | 11.30 ft |
| 14 | April 16, 1972 | 11.20 ft |
| 15 | October 16, 1954 | 11.20 ft |
| 16 | December 5, 1993 | 11.12 ft |
| 17 | February 19, 2022 | 11.08 ft |
| 18 | January 13, 2017 | 11.07 ft |
| 19 | May 23, 2004 | 11.04 ft |
| 20 | March 8, 2022 | 10.45 ft |
| 21 | March 29, 2020 | 10.11 ft |
| 22 | December 26, 1979 | 10.10 ft |
| 23 | April 2, 2026 | 10.05 ft |
Most recent crests
- April 2, 2026: 10.05 ft
- March 8, 2022: 10.45 ft
- February 19, 2022: 11.08 ft
- March 29, 2020: 10.11 ft
- April 17, 2018: 12.15 ft
- January 13, 2017: 11.07 ft
- March 1, 2011: 11.81 ft
- February 7, 2008: 12.01 ft
- May 23, 2004: 11.04 ft
- July 23, 2003: 14.88 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Ohio River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.