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Hydrograph River at a Glance Download
Mahoning River at Youngstown Stage (ft)Flow (kcfs)Highest Observation: 2.36 ft at 1:30PM Sep 15, 2020Highest Observation: 2.36 ft at 1:45PM Sep 15, 2020Highest Observation: 2.36 ft at 2:00PM Sep 15, 2020Observed: 2.35 ft at 2:15PM Sep 15, 2020Observed: 2.35 ft at 2:30PM Sep 15, 2020Observed: 2.35 ft at 2:45PM Sep 15, 2020Observed: 2.35 ft at 3:00PM Sep 15, 2020Observed: 2.35 ft at 3:15PM Sep 15, 2020Observed: 2.35 ft at 3:30PM Sep 15, 2020Observed: 2.35 ft at 3:45PM Sep 15, 2020Observed: 2.35 ft at 4:00PM Sep 15, 2020Observed: 2.35 ft at 4:15PM Sep 15, 2020Observed: 2.34 ft at 4:30PM Sep 15, 2020Observed: 2.34 ft at 4:45PM Sep 15, 2020Observed: 2.34 ft at 5:00PM Sep 15, 2020Observed: 2.34 ft at 5:15PM Sep 15, 2020Observed: 2.34 ft at 5:30PM Sep 15, 2020Observed: 2.34 ft at 5:45PM Sep 15, 2020Observed: 2.34 ft at 6:00PM Sep 15, 2020Observed: 2.34 ft at 6:15PM Sep 15, 2020Observed: 2.34 ft at 6:30PM Sep 15, 2020Observed: 2.34 ft at 6:45PM Sep 15, 2020Observed: 2.34 ft at 7:00PM Sep 15, 2020Observed: 2.34 ft at 7:15PM Sep 15, 2020Observed: 2.34 ft at 7:30PM Sep 15, 2020Observed: 2.34 ft at 7:45PM Sep 15, 2020Observed: 2.34 ft at 8:00PM Sep 15, 2020Observed: 2.33 ft at 8:15PM Sep 15, 2020Observed: 2.33 ft at 8:30PM Sep 15, 2020Observed: 2.33 ft at 8:45PM Sep 15, 2020Observed: 2.33 ft at 9:00PM Sep 15, 2020Observed: 2.33 ft at 9:15PM Sep 15, 2020Observed: 2.32 ft at 9:30PM Sep 15, 2020Observed: 2.33 ft at 9:45PM Sep 15, 2020Observed: 2.32 ft at 10:00PM Sep 15, 2020Observed: 2.33 ft at 10:15PM Sep 15, 2020Observed: 2.33 ft at 10:30PM Sep 15, 2020Observed: 2.32 ft at 10:45PM Sep 15, 2020Observed: 2.32 ft at 11:00PM Sep 15, 2020Observed: 2.32 ft at 11:15PM Sep 15, 2020Observed: 2.32 ft at 11:30PM Sep 15, 2020Observed: 2.32 ft at 11:45PM Sep 15, 2020Observed: 2.32 ft at 12:00AM Sep 16, 2020Observed: 2.32 ft at 12:15AM Sep 16, 2020Observed: 2.32 ft at 12:30AM Sep 16, 2020Observed: 2.32 ft at 12:45AM Sep 16, 2020Observed: 2.31 ft at 1:00AM Sep 16, 2020Observed: 2.31 ft at 1:15AM Sep 16, 2020Observed: 2.31 ft at 1:30AM Sep 16, 2020Observed: 2.31 ft at 1:45AM Sep 16, 2020Observed: 2.31 ft at 2:00AM Sep 16, 2020Observed: 2.31 ft at 2:15AM Sep 16, 2020Observed: 2.31 ft at 2:30AM Sep 16, 2020Observed: 2.31 ft at 2:45AM Sep 16, 2020Observed: 2.3 ft at 3:00AM Sep 16, 2020Observed: 2.3 ft at 3:15AM Sep 16, 2020Observed: 2.3 ft at 3:30AM Sep 16, 2020Observed: 2.3 ft at 3:45AM Sep 16, 2020Observed: 2.3 ft at 4:00AM Sep 16, 2020Observed: 2.3 ft at 4:15AM Sep 16, 2020Observed: 2.3 ft at 4:30AM Sep 16, 2020Observed: 2.3 ft at 4:45AM Sep 16, 2020Observed: 2.3 ft at 5:00AM Sep 16, 2020Observed: 2.29 ft at 5:15AM Sep 16, 2020Observed: 2.3 ft at 5:30AM Sep 16, 2020Observed: 2.29 ft at 5:45AM Sep 16, 2020Observed: 2.29 ft at 6:00AM Sep 16, 2020Observed: 2.29 ft at 6:15AM Sep 16, 2020Observed: 2.29 ft at 6:30AM Sep 16, 2020Observed: 2.29 ft at 6:45AM Sep 16, 2020Observed: 2.29 ft at 7:00AM Sep 16, 2020Observed: 2.29 ft at 7:15AM Sep 16, 2020Observed: 2.28 ft at 7:30AM Sep 16, 2020Observed: 2.29 ft at 7:45AM Sep 16, 2020Observed: 2.28 ft at 8:00AM Sep 16, 2020Observed: 2.28 ft at 8:15AM Sep 16, 2020Observed: 2.28 ft at 8:30AM Sep 16, 2020Observed: 2.28 ft at 8:45AM Sep 16, 2020Observed: 2.28 ft at 9:00AM Sep 16, 2020Observed: 2.28 ft at 9:15AM Sep 16, 2020Observed: 2.28 ft at 9:30AM Sep 16, 2020Observed: 2.28 ft at 9:45AM Sep 16, 2020Observed: 2.28 ft at 10:00AM Sep 16, 2020Observed: 2.28 ft at 10:15AM Sep 16, 2020Observed: 2.28 ft at 10:30AM Sep 16, 2020Observed: 2.28 ft at 10:45AM Sep 16, 2020Observed: 2.28 ft at 11:00AM Sep 16, 2020Observed: 2.28 ft at 11:15AM Sep 16, 2020Observed: 2.28 ft at 11:30AM Sep 16, 2020Observed: 2.28 ft at 11:45AM Sep 16, 2020Observed: 2.27 ft at 12:00PM Sep 16, 2020Observed: 2.27 ft at 12:15PM Sep 16, 2020Observed: 2.27 ft at 12:30PM Sep 16, 2020Observed: 2.28 ft at 12:45PM Sep 16, 2020Observed: 2.27 ft at 1:00PM Sep 16, 2020Observed: 2.27 ft at 1:15PM Sep 16, 2020Observed: 2.27 ft at 1:30PM Sep 16, 2020Observed: 2.27 ft at 1:45PM Sep 16, 2020Observed: 2.27 ft at 2:00PM Sep 16, 2020Observed: 2.27 ft at 2:15PM Sep 16, 2020Observed: 2.27 ft at 2:30PM Sep 16, 2020Observed: 2.27 ft at 2:45PM Sep 16, 2020Observed: 2.27 ft at 3:00PM Sep 16, 2020Observed: 2.27 ft at 3:15PM Sep 16, 2020Observed: 2.27 ft at 3:30PM Sep 16, 2020Observed: 2.26 ft at 3:45PM Sep 16, 2020Observed: 2.27 ft at 4:00PM Sep 16, 2020Observed: 2.26 ft at 4:15PM Sep 16, 2020Observed: 2.26 ft at 4:30PM Sep 16, 2020Observed: 2.26 ft at 4:45PM Sep 16, 2020Observed: 2.26 ft at 5:00PM Sep 16, 2020Observed: 2.26 ft at 5:15PM Sep 16, 2020Observed: 2.26 ft at 5:30PM Sep 16, 2020Observed: 2.26 ft at 5:45PM Sep 16, 2020Observed: 2.26 ft at 6:00PM Sep 16, 2020Observed: 2.26 ft at 6:15PM Sep 16, 2020Observed: 2.26 ft at 6:30PM Sep 16, 2020Observed: 2.26 ft at 6:45PM Sep 16, 2020Observed: 2.26 ft at 7:00PM Sep 16, 2020Observed: 2.26 ft at 7:15PM Sep 16, 2020Observed: 2.26 ft at 7:30PM Sep 16, 2020Observed: 2.26 ft at 7:45PM Sep 16, 2020Observed: 2.26 ft at 8:00PM Sep 16, 2020Observed: 2.26 ft at 8:15PM Sep 16, 2020Observed: 2.26 ft at 8:30PM Sep 16, 2020Observed: 2.26 ft at 8:45PM Sep 16, 2020Observed: 2.26 ft at 9:00PM Sep 16, 2020Observed: 2.26 ft at 9:15PM Sep 16, 2020Observed: 2.26 ft at 9:30PM Sep 16, 2020Observed: 2.26 ft at 9:45PM Sep 16, 2020Observed: 2.26 ft at 10:00PM Sep 16, 2020Observed: 2.25 ft at 10:15PM Sep 16, 2020Observed: 2.26 ft at 10:30PM Sep 16, 2020Observed: 2.26 ft at 10:45PM Sep 16, 2020Observed: 2.26 ft at 11:00PM Sep 16, 2020Observed: 2.26 ft at 11:15PM Sep 16, 2020Observed: 2.26 ft at 11:30PM Sep 16, 2020Observed: 2.25 ft at 11:45PM Sep 16, 2020Observed: 2.26 ft at 12:00AM Sep 17, 2020Observed: 2.25 ft at 12:15AM Sep 17, 2020Observed: 2.25 ft at 12:30AM Sep 17, 2020Observed: 2.26 ft at 12:45AM Sep 17, 2020Observed: 2.25 ft at 1:00AM Sep 17, 2020Observed: 2.25 ft at 1:15AM Sep 17, 2020Observed: 2.25 ft at 1:30AM Sep 17, 2020Observed: 2.25 ft at 1:45AM Sep 17, 2020Observed: 2.25 ft at 2:00AM Sep 17, 2020Observed: 2.25 ft at 2:15AM Sep 17, 2020Observed: 2.25 ft at 2:30AM Sep 17, 2020Observed: 2.25 ft at 2:45AM Sep 17, 2020Observed: 2.25 ft at 3:00AM Sep 17, 2020Observed: 2.25 ft at 3:15AM Sep 17, 2020Observed: 2.25 ft at 3:30AM Sep 17, 2020Observed: 2.24 ft at 3:45AM Sep 17, 2020Observed: 2.25 ft at 4:00AM Sep 17, 2020Observed: 2.25 ft at 4:15AM Sep 17, 2020Observed: 2.25 ft at 4:30AM Sep 17, 2020Observed: 2.24 ft at 4:45AM Sep 17, 2020Observed: 2.25 ft at 5:00AM Sep 17, 2020Observed: 2.24 ft at 5:15AM Sep 17, 2020Observed: 2.25 ft at 5:30AM Sep 17, 2020Observed: 2.24 ft at 5:45AM Sep 17, 2020Observed: 2.25 ft at 6:00AM Sep 17, 2020Observed: 2.24 ft at 6:15AM Sep 17, 2020Observed: 2.24 ft at 6:30AM Sep 17, 2020Observed: 2.24 ft at 6:45AM Sep 17, 2020Observed: 2.24 ft at 7:00AM Sep 17, 2020Observed: 2.24 ft at 7:15AM Sep 17, 2020Observed: 2.24 ft at 7:30AM Sep 17, 2020Observed: 2.24 ft at 7:45AM Sep 17, 2020Observed: 2.24 ft at 8:00AM Sep 17, 2020Observed: 2.24 ft at 8:15AM Sep 17, 2020Observed: 2.24 ft at 8:30AM Sep 17, 2020Observed: 2.24 ft at 8:45AM Sep 17, 2020Observed: 2.24 ft at 9:00AM Sep 17, 2020Observed: 2.24 ft at 9:15AM Sep 17, 2020Observed: 2.24 ft at 9:30AM Sep 17, 2020Observed: 2.24 ft at 9:45AM Sep 17, 2020Observed: 2.24 ft at 10:00AM Sep 17, 2020Observed: 2.24 ft at 10:15AM Sep 17, 2020Observed: 2.24 ft at 10:30AM Sep 17, 2020Observed: 2.23 ft at 10:45AM Sep 17, 2020Observed: 2.24 ft at 11:00AM Sep 17, 2020Observed: 2.23 ft at 11:15AM Sep 17, 2020Observed: 2.23 ft at 11:30AM Sep 17, 2020Observed: 2.23 ft at 11:45AM Sep 17, 2020Observed: 2.23 ft at 12:00PM Sep 17, 2020Observed: 2.23 ft at 12:15PM Sep 17, 2020Observed: 2.23 ft at 12:30PM Sep 17, 2020Observed: 2.23 ft at 12:45PM Sep 17, 2020Observed: 2.23 ft at 1:00PM Sep 17, 2020Observed: 2.23 ft at 1:15PM Sep 17, 2020Observed: 2.23 ft at 1:30PM Sep 17, 2020Observed: 2.23 ft at 1:45PM Sep 17, 2020Observed: 2.23 ft at 2:00PM Sep 17, 2020Observed: 2.23 ft at 2:15PM Sep 17, 2020Observed: 2.23 ft at 2:30PM Sep 17, 2020Observed: 2.23 ft at 2:45PM Sep 17, 2020Observed: 2.23 ft at 3:00PM Sep 17, 2020Observed: 2.23 ft at 3:15PM Sep 17, 2020Observed: 2.23 ft at 3:30PM Sep 17, 2020Observed: 2.23 ft at 3:45PM Sep 17, 2020Observed: 2.23 ft at 4:00PM Sep 17, 2020Observed: 2.23 ft at 4:15PM Sep 17, 2020Observed: 2.23 ft at 4:30PM Sep 17, 2020Observed: 2.23 ft at 4:45PM Sep 17, 2020Observed: 2.23 ft at 5:00PM Sep 17, 2020Observed: 2.23 ft at 5:15PM Sep 17, 2020Observed: 2.23 ft at 5:30PM Sep 17, 2020Observed: 2.23 ft at 5:45PM Sep 17, 2020Observed: 2.23 ft at 6:00PM Sep 17, 2020Observed: 2.23 ft at 6:15PM Sep 17, 2020Observed: 2.23 ft at 6:30PM Sep 17, 2020Observed: 2.23 ft at 6:45PM Sep 17, 2020Observed: 2.23 ft at 7:00PM Sep 17, 2020Observed: 2.23 ft at 7:15PM Sep 17, 2020Observed: 2.23 ft at 7:30PM Sep 17, 2020Observed: 2.23 ft at 7:45PM Sep 17, 2020Observed: 2.23 ft at 8:00PM Sep 17, 2020Observed: 2.23 ft at 8:15PM Sep 17, 2020Observed: 2.23 ft at 8:30PM Sep 17, 2020Observed: 2.22 ft at 8:45PM Sep 17, 2020Observed: 2.23 ft at 9:00PM Sep 17, 2020Observed: 2.23 ft at 9:15PM Sep 17, 2020Observed: 2.23 ft at 9:30PM Sep 17, 2020Observed: 2.23 ft at 9:45PM Sep 17, 2020Observed: 2.23 ft at 10:00PM Sep 17, 2020Observed: 2.23 ft at 10:15PM Sep 17, 2020Observed: 2.23 ft at 10:30PM Sep 17, 2020Observed: 2.23 ft at 10:45PM Sep 17, 2020Observed: 2.23 ft at 11:00PM Sep 17, 2020Observed: 2.22 ft at 11:15PM Sep 17, 2020Observed: 2.23 ft at 11:30PM Sep 17, 2020Observed: 2.23 ft at 11:45PM Sep 17, 2020Observed: 2.23 ft at 12:00AM Sep 18, 2020Observed: 2.23 ft at 12:15AM Sep 18, 2020Observed: 2.22 ft at 12:30AM Sep 18, 2020Observed: 2.22 ft at 12:45AM Sep 18, 2020Observed: 2.22 ft at 1:00AM Sep 18, 2020Observed: 2.22 ft at 1:15AM Sep 18, 2020Observed: 2.22 ft at 1:30AM Sep 18, 2020Observed: 2.22 ft at 1:45AM Sep 18, 2020Observed: 2.21 ft at 2:00AM Sep 18, 2020Observed: 2.22 ft at 2:15AM Sep 18, 2020Observed: 2.21 ft at 2:30AM Sep 18, 2020Observed: 2.21 ft at 2:45AM Sep 18, 2020Observed: 2.21 ft at 3:00AM Sep 18, 2020Observed: 2.21 ft at 3:15AM Sep 18, 2020Observed: 2.21 ft at 3:30AM Sep 18, 2020Observed: 2.2 ft at 3:45AM Sep 18, 2020Observed: 2.2 ft at 4:00AM Sep 18, 2020Observed: 2.2 ft at 4:15AM Sep 18, 2020USGS--Water Resources of the United StatesYGWO1(plotting HGIRG) Graph Created (5:02AM Sep 18, 2020)ObservedLatest observed value: 2.2 ft at 4:15 AM EDT 18-Sep-2020. Flood Stage is 14 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Mahoning River at Youngstown are issued as needed during times of high water, but are not routinely available.
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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Lowellville
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) 16.30 ft on 03/02/1910
(5) 15.91 ft on 05/23/2004
(6) 15.80 ft on 02/28/2011
(7) 15.44 ft on 04/13/1994
(8) 15.23 ft on 02/06/2008
(9) 14.92 ft on 01/25/1937
(10) 14.90 ft on 05/12/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.31 ft on 04/17/2018
(2) 14.73 ft on 01/13/2017
(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 (P)
(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.
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
 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 Collapse
If you notice any errors in the below information, please contact our Webmaster
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 Collapse

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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 824.1 ft 834.1 ft 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:
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.
Resources Collapse
Hydrologic Resources Additional Resources
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
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Cleveland, OH 44135
(216) 265-2370
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