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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 Great Miami River at Sidney are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at Piqua
Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 14.6
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 19.60 ft on 03/25/1913
(2) 15.91 ft on 01/21/1959
(3) 15.61 ft on 12/22/2013
(4) 14.58 ft on 07/13/1992
(5) 14.40 ft on 07/09/2003
(6) 14.40 ft on 03/20/1927
(7) 14.36 ft on 12/30/1990
(8) 14.16 ft on 01/06/2005
(9) 13.64 ft on 08/08/1995
(10) 13.62 ft on 01/12/2005
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 10.86 ft on 03/04/2023 (P)
(2) 10.35 ft on 03/07/2022 (P)
(3) 11.62 ft on 03/29/2020 (P)
(4) 11.03 ft on 06/21/2019
(5) 10.87 ft on 06/18/2019
(6) 11.83 ft on 05/18/2019
(7) 10.90 ft on 02/08/2019
(8) 12.55 ft on 04/04/2018
(9) 10.00 ft on 02/25/2018
(10) 11.90 ft on 11/19/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.48 ft on 09/09/2010
(2) 0.52 ft on 08/31/2012
(3) 0.52 ft on 10/13/2010
(4) 0.53 ft on 11/02/2010
(5) 0.53 ft on 08/16/2009
Show More Low Water Records
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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
19.6 This will reach the flood of record of 1913. Much of the City of Sidney would be inundated, as well as areas along the river through Shelby County. Hundreds of homes and businesses would be inundated.
18.54 The river will breach city flood wall with the entire south end of the city flooded. Downstream in Miami County, major flooding occurs with numerous homes and businesses impacted.
18.02 The river breaches the Jersey barriers on South Ohio Avenue in front of the Big Four Bridge. Flooding occurs along Crescent Drive, South Ohio and Brooklyn Avenue.
16 Flooding continues along Riverside Drive and Custenborder Field. In addition, flooding worsens along County Road 25A, near the cemetery, north to the Big Four Bridge. Downstream of Sidney, flooding worsens in Miami County along the river.
14.6 The river breaches the west bank on County Road 25A South. County Road 25A near the cemetery will flood north onto the Big Four Bridge where the Jersey barriers are located.
14 Several homes and businesses are impacted on the east side of Sidney, as well as Port Jefferson. Downstream in Miami County, portions of Piqua and Troy experience flooding.
13 Water approaches properties along Canal Street in Port Jefferson, with flooding worsening in Custenborder Field in Sidney.
12 The river breaches the bank on Riverside Drive, with flooding of Custenborder Field at the east river intake. Flooding of properties occurs along the river on Riverside Drive from the BK Root Beer stand to the city limits.
11 Custenborder Field has some flooding of perimeter areas, along with flooding occurring in low spots on Miami River Road.
10 The river approaches the bank on the west side of Custenborder Field. At stages above 10 feet, city officials begin flood operations.
(1) topo map of Sidney gage area

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) 10 Day (NAEFS) River Forecast VS. River Potential
HEFS Ensemble NAEFS Ensemble Outlook vs. Forecast

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

See the Product Description Document link for more details on the interpretation of the 10 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
Wilmington Weather Forecast Office
1901 South State Route 134
Wilmington, OH 45177
(937) 383-0031
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Page last modified: 2-Nov-2020 7:30 PM
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