ALERT: Update on status of the nationwide data transmission error that prevents stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. The USGS has restored the transmission from all of their gauges or has placed them in a seasonal outage (some Alaska gauges). There are a few USGS gauges that the NWS is not yet receiving the new transmissions and NWS is working to get that data by alternate means. A map of the status of USGS gauges is here. The status map of gauge outages from other agencies is here. The situation has greatly improved and will continue to improve but at a slower pace. The outage maps will now be updated once per week on Thursday. We apologize for the service interruption and hope to have the data restored as soon as possible.

Weather Forecast Office New Orleans/Baton Rouge, LA

Lower Mississippi River Forecast Center

Hydrograph

River at a Glance

Download

Probability Information Weekly Chance of Exceeding Levels Not Available Chance of Exceeding Levels During Entire Period Not Available Short-term Probabilistic Guidance (Experimental) Not Available

Auto Refresh: OFF

Printable Image About this graph Tabular Data (UTC) Tabular Data (CST) Datum: Not Available Metadata

NOTE: Forecasts for the Mississippi River at Baton Rouge are issued routinely year-round.

Default Hydrograph Scale to Flood Categories   Return to Area Map

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) 43.78 ft on 03/19/2018 (2) 40.60 ft on 05/30/2017 (3) 40.60 ft on 05/30/2017 (4) 38.47 ft on 03/21/2016 (5) 43.28 ft on 01/18/2016 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

If you notice any errors in the below information, please contact our Webmaster
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 Flood Damage Costs/Fatalities in the US, 1903 - 2014 AHPS Web Brochure 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: 21-Dec-2016 5:20 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities