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This probabilistic forecast is issued by the Ohio River Forecast Center.
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About this graph
Forecasts for the Mahoning River at Warren are issued as needed during times of high water, but are not routinely available.
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Upstream Locations Upstream Gauge
Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 12.5
Moderate Flood Stage: 11
Flood Stage: 10
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 21.00 ft on 03/26/1913
(2) 16.70 ft on 01/22/1959
(3) 14.88 ft on 07/23/2003
(4) 13.70 ft on 02/11/1959
(5) 12.80 ft on 03/05/1964
(6) 12.61 ft on 09/13/1979
(7) 12.50 ft on 03/11/1964
(8) 12.15 ft on 04/17/2018
(9) 12.10 ft on 05/13/1956
(10) 12.01 ft on 02/07/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 10.11 ft on 03/29/2020 (P)
(2) 12.15 ft on 04/17/2018
(3) 11.07 ft on 01/13/2017
(4) 11.81 ft on 03/01/2011
(5) 12.01 ft on 02/07/2008
(6) 11.04 ft on 05/23/2004
(7) 14.88 ft on 07/23/2003
(8) 11.35 ft on 04/13/1994
(9) 11.12 ft on 12/05/1993
(10) 10.10 ft on 12/26/1979
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.00 ft on 02/23/1973
KML Image
Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
20 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 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 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 Southwest Main Avenue inundated. Areas near the river south of Market Street flooded.
13 Property near the river south of Market Street flooded, including South Park and Pine Avenue.
12.5 Southern portions of South Park Avenue, Civitella Streets, and Pine Avenues flooded. Berkins Park inundated.
12 Flooding will begin along Pine Avenue.
11.5 Floodwaters will spread to Lynwood Drive and Olian Avenue.
11 Flooding will affect property along Tod Avenue and Lovers Lane Drive.
10 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.

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics.

Click individual graphics to enlarge.

Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Cleveland Weather Forecast Office
Federal Facilities Building Hopkins Airport
Cleveland, OH 44135
(216) 265-2370
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Page last modified: 6-Nov-2019 2:41 PM
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