National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office New Orleans/Baton Rouge, LA

Lower Mississippi River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (CDT)

Datum: Not Available

Metadata

NOTE: Forecasts for the Amite River at Port Vincent are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	12
Moderate Flood Stage:	10
Flood Stage:	8
Action Stage:	7
Low Stage (in feet):	-9999

Historic Crests
(1) 17.50 ft on 08/15/2016
(2) 14.65 ft on 04/09/1983
(3) 12.73 ft on 06/11/2001
(4) 11.96 ft on 05/21/1953
(5) 11.83 ft on 01/28/1990
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.77 ft on 05/13/2019
(2) 6.03 ft on 12/30/2018
(3) 5.37 ft on 04/06/2017
(4) 5.29 ft on 01/24/2017
(5) 17.50 ft on 08/15/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.60 ft on 12/19/1954
(2) -1.16 ft on 08/04/1983
(3) -1.04 ft on 01/19/1977
(4) -0.85 ft on 12/25/1989
(5) -0.61 ft on 04/13/1988
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:15

	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
17.45	Flood of Record occurred on August 15, 2016. Flood level estimated. Water will spread across the entire area from Bayou Mancha south to Port Vincent. Evacuations will be necessary. Widespread fllooding will inundate most roads in this area, including LA Highways 16, 42, 431, and 933.
14	Widespread flooding will develop with significant backwater flooding over neighborhoods in Livingston and Ascension Parishes. Water will inundate LA Hwy 42 and LA Hwy 431.
10	Increased flow and strong current will affect river traffic. Grays Creek and the main channel of the Amite River will merge. Saint Amant Swamp will be inundated. Streets will flood in Port Vincent. There will be minor flooding of residential areas.
9	Streets will flood in Port Vincent. There will be minor flooding of residential areas.
8	Some flooding will occur in low lying residential, commercial, and recreational areas.

About This Location

Latitude: 30.332500° N, Longitude: 90.851944° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	8 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	0.01 ft	8.01 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:

U.S. Geological Survey (USGS) Data and Site Info for Port Vincent

Resources

Hydrologic Resources

Additional Resources

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
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Page last modified: 1-Mar-2019 12:34 AM

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