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 New Orleans/Baton Rouge, LA

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 Mississippi River at Baton Rouge are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 40 Moderate Flood Stage: 38 Flood Stage: 35 Action Stage: 30 Low Stage (in feet): -9999 Historic Crests (1) 47.28 ft on 05/15/1927 (2) 45.18 ft on 04/29/1945 (3) 45.18 ft on 05/16/1922 (4) 45.01 ft on 05/18/2011 (5) 44.58 ft on 04/16/1945 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 35.68 ft on 03/23/2022 (2) 39.09 ft on 04/17/2021 (3) 44.35 ft on 04/16/2020 (4) 44.18 ft on 03/18/2019 (5) 43.78 ft on 03/19/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) -0.07 ft on 11/14/1894 (2) 0.28 ft on 11/16/1895 (3) 0.38 ft on 01/09/1877 (4) 0.48 ft on 01/12/1918 (5) 0.58 ft on 11/26/1887 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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47.28	This is the flood of record established on May 15, 1927.
43	Shipping and industrial activities are significantly affected. Unprotected low-lying areas will be flooded and agricultural operations will be impacted on the west side of the river. The city of Baton Rouge is protected by levees at this level.
40	The grounds of the older part of Louisiana State University's campus become soggy. This includes the area around the Veterinary Medicine building, the Veterinary Medicine Annex, the stadium and ball fields. The city of Baton Rouge and the main LSU campus are protected by levees at this level.
38	River traffic and industrial activity on the river side of the levees will be greatly affected. Navigational safety regulations will be strictly enforced.
36	River traffic and industrial activity on the river side of the levees will be greatly affected. Navigational safety regulations will be strictly enforced.
35	River islands from Red River Landing downstream to Baton Rouge will be inundated.

About This Location

Latitude: 30.429167° N, Longitude: 91.206944° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 35 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 0 ft 35 ft 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: Corps of Engineers (COE) Info for Baton Rouge

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 Snow Information

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 New Orleans/Baton Rouge Weather Forecast Office 62300 Airport Rd. Slidell, LA 70460-5243 (504) 522-7330 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities