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: 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.

Weather Forecast Office Memphis, TN

Lower Mississippi 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 (CDT) Datum: Not Available Metadata

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. NOTE: Forecasts for the Right Hand Chute Little River at Rivervale are issued routinely year-round.

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Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 15 Moderate Flood Stage: 14 Flood Stage: 11 Action Stage: 8 Low Stage (in feet): 0 Historic Crests (1) 16.24 ft on 05/06/2011 (2) 13.87 ft on 02/20/1989 (3) 13.77 ft on 02/16/2019 (P) (4) 13.57 ft on 01/19/1950 (5) 13.55 ft on 11/23/1957 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 13.77 ft on 02/16/2019 (P) (2) 11.24 ft on 05/05/2014 (3) 16.24 ft on 05/06/2011 (4) 10.72 ft on 01/01/2010 (5) 10.76 ft on 12/31/2009 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.43 ft on 10/12/1994 (2) 1.45 ft on 09/02/1988 (3) 1.50 ft on 11/12/1982 Show More Low Water Records

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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20.8	Water is flowing over the Highway 135 bridge. The levee system is overtopped causing widespread flooding.
18	Water reaches the bottom of the Highway 135 bridge.
14	Widespread flooding is occurring. Some evacuations may be necessary. Several roads between Rivervale and Big Lake Wildlife Refuge are flooded.
13	Several thousand acres of unprotected crop land is flooded and several roads inside the levee system are covered by flood water.
12	Evacuations may be necessary for some areas inside the main levee system due to access problems. Field flooding is widespread.
11	Farm land north of Rivervale is flooded. Low-lying portions of Highway 158 near the river are flooded.
10	Unprotected farm land near the river is flooded between Rivervale and Big Lake Wildlife Refuge.
8	Flooding is occurring inside the levee system. Equipment and livestock may need to be moved.
Photos (1) Upstream (2) Downstream (3) East (4) West (5) Gage on South Side of AR Route 136 Bridge 9-1-9 2.23 ft

About This Location

Latitude: 35.671667° N, Longitude: 90.338056° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 11 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 29 213.15 ft 224.15 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: Corps of Engineers (COE) Info for Rivervale U.S. Geological Survey (USGS) Data and Site Info for Rivervale

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary US Army Corps of Engineers, Mobile District US Army Corps of Engineers, Mississippi Valley Division US Army Corps of Engineers, Memphis District USGS Water Resources of the United States USGS Daily Steamflow Conditions Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management U.S. Drought Monitor NOAA Drought Information Center Snow Information Tennessee River Stages and 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 Memphis Weather Forecast Office 7777 Walnut Grove Rd, Suite 1 Memphis, TN 38120 (901) 544-0399 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities