Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

DID YOU KNOW... Please try our new TEST hydrograph page link at: https://preview.water.noaa.gov/gauges/abcde - Just replace “abcde” with your local hydrograph five character ID found in the lower left corner of the hydrograph.  In late March of 2024, the base URL path will become water.noaa.gov.  Feedback can be provided HERE

Weather Forecast Office Cleveland, OH

Ohio River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) Datum: NAVD88 Metadata

NOTE: Forecasts for the Mahoning River at Youngstown are issued as needed during times of high water, but are not routinely available.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 20.5 Moderate Flood Stage: 16 Flood Stage: 14 Action Stage: 10 Low Stage (in feet): -9999 Historic Crests (1) 26.50 ft on 03/26/1913 (2) 18.60 ft on 01/22/1959 (3) 17.49 ft on 07/23/2003 (4) 16.59 ft on 02/18/2022 (P) (5) 16.30 ft on 03/02/1910 (6) 15.91 ft on 05/23/2004 (7) 15.80 ft on 02/28/2011 (8) 15.44 ft on 04/13/1994 (9) 15.23 ft on 02/06/2008 (10) 14.92 ft on 01/25/1937 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 16.59 ft on 02/18/2022 (P) (2) 14.31 ft on 04/17/2018 (3) 14.73 ft on 01/13/2017 (4) 12.51 ft on 07/12/2013 (5) 15.80 ft on 02/28/2011 (6) 12.10 ft on 03/09/2009 (7) 15.23 ft on 02/06/2008 (8) 10.30 ft on 03/15/2007 (9) 12.40 ft on 03/02/2007 (10) 14.05 ft on 01/06/2005 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer Gauge Location Disclaimer 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

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26	FEMA 0.2 percent flood level.
22	Record flooding can be expected from Youngstown to Lowelville. Industrial areas along the Mahoning River will be completely inundated.
21	FEMA 1 percent flood level.
20.5	Niles split in half by flood waters. In Girard Mill Street, Front Street, River Street, and Liberty Street inundated. The Youngstown water department is flooded. Major flooding will occur in industrial areas east of U.S. 680. Floodwaters may reach depths of two to four feet along railraod tracks in this area.
20	River gage flooded.
18	In Niles water inundates over Water Street, West State Street, Butler Avenue, First and Second Streets, and North Main Street. The Meander Creek backup is likely to flood southern portions of town. Homes and businesses south of Walnut Street and East Park Avenue inundated. Homes inundated in Girard along River and Front Streets. In Youngstown portions of eastern Marshall and Mahoning Avenue inundated just north of Highway 680.
17	In Niles State Route 46 flooded and the West Park Avenue Bridge north to the Warren Township line inundated. Belmont Avenue extension inundated near Price Avenue. Meander Creek backup likely to flood McKees Lane and Main Street. The western portion of Youngstown near Austintown floods near Salt Springs Road and Division Street. The eastside of Youngstown along Wilson Avenue north to the city limits is inundated.
16	Roads near the river in Girard and Niles in southern Trumbull County inundated. These include First and Second Streets in Niles, and River and Front Streets in Girard. Businesses south of Olive Street in McDonald inundated. Lowland in Mahoning County inundated.
15	Water inundates property on River and Front Streets in Girard. In Niles State Route 46 flooded and First Street begins to inundate. In Mahoning County flooding will spread into industrial areas along the river.
14	River inundates lowland near the river. Some basement flooding possible.
12	River at bankfull.

About This Location

Latitude: 41.105058° N, Longitude: 80.662580° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 14 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 823.51 837.51 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Youngstown

Additional Information

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels 10 Day (HEFS) 10 Day (NAEFS) 10 Day (GEFS) 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 10 day graphics. Click individual graphics to enlarge.

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Current Snow Depth Current Snow Water Equivalent 24-hour Snowfall Reports Ohio Basin Water Resources Outlook Ensemble River Forecasts Hourly Precipitation

Collaborative Agencies 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 925 Keynote Circle, Suite #314 Brooklyn Heights, OH 44131 (216) 416-2900 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities