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 March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.

Weather Forecast Office Northern Indiana, IN

North Central 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 (EDT) Datum: NAVD88 Metadata

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. NOTE: Forecasts for the Yellow River at Plymouth are issued as needed during times of high water, but are not routinely available.

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Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 15 Moderate Flood Stage: 14 Flood Stage: 13 Action Stage: 11 Low Stage (in feet): -9999 Historic Crests (1) 17.73 ft on 02/22/2018 (2) 17.13 ft on 10/12/1954 (3) 16.37 ft on 03/16/1982 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 13.01 ft on 06/28/2021 (P) (2) 11.94 ft on 01/13/2020 (3) 13.53 ft on 05/02/2019 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 2.80 ft on 01/01/1953 (2) 3.93 ft on 07/18/2012 (3) 4.03 ft on 09/06/2020 Show More Low Water Records 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:16 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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17	There are extensive flooding problems throughout Plymouth.
16	Residential areas and high school property flood. Water from 1 to 3 feet deep affects southern and eastern sections of the city.
15	Flooding begins of commercial property along Laporte and Garro Streets.
14.5	The parking lot on Laporte Street begins to flood.
14	A small trailer park near the Jefferson Street bridge begins to flood.
13.5	Some residential and commercial properties near the Jefferson Street Bridge begin to flood.
13	The right bank of the Yellow River overflows with some city streets...low lying county roads and back yards along Laporte Street in Plymouth flooding. Low lying agricultural areas flood as well.
Photos (1) Upstream view from gauge site (2) Downstream view from gauge site

About This Location

Latitude: 41.340200° N, Longitude: 86.304400° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 13 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 764.270 777.270 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 Plymouth

Additional Information

How low could the river get?

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary US Geological Survery Surface Water Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management NOAA Drought Information Center Snow Information Water Resource Outlook Ohio Valley Experimental Ensemble River Forecasts

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 Northern Indiana Weather Forecast Office 7506 E 850 N Syracuse, IN 46567 (574) 834-1104 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities