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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the Lower Mississippi River Forecast Center.
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About this graph
Forecasts for the Mississippi River at New Orleans are issued routinely year-round.
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Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 19
Flood Stage: 17
Action Stage: 17
Low Stage (in feet): -9999

Historic Crests
(1) 21.27 ft on 04/25/1922
(2) 21.05 ft on 05/11/1912
(3) 21.00 ft on 04/25/1927
(4) 20.50 ft on 05/18/1927
(5) 20.05 ft on 03/03/1916
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(P): Preliminary values subject to further review.

Recent Crests
(1) 17.61 ft on 04/17/2020
(2) 17.25 ft on 05/10/2019
(3) 16.99 ft on 03/19/2018
(4) 16.48 ft on 05/31/2017
(5) 15.23 ft on 03/21/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.60 ft on 12/27/1872
(2) -1.40 ft on 01/09/1877
(3) -1.20 ft on 12/30/1876
(4) -0.90 ft on 12/27/1917
(5) -0.80 ft on 11/24/1879
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
21.27 Flood or Record occurred on April 25, 1922.
20 A 20 foot project levee protects the city. Floodwalls and levees are constantly upgraded to maintain that project height.
17 The river level will continue making navigation and docking difficult. The city is protected to a project height of 20 feet.
13 Strong eddies will develop below the gage at Carrollton, with increased negative impacts on navigation.

Other Real-time and/or Archive Data Sources:

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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
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Page last modified: 2-Nov-2020 7:29 PM
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