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Hydrograph River at a Glance Download
Atchafalaya River at Bayou Sorrel Landside Stage (ft)SLSL1(plotting HGIRZ) Graph Created (3:09AM May 26, 2024)ObservedFlood Stage is 6 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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Datum: Not Available
NOTE: Graphical forecasts are not available for the Atchafalaya River at Bayou Sorrel Landside. During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Major Flood Stage: 10
Moderate Flood Stage: 8
Flood Stage: 6
Action Stage: 5.5
Low Stage (in feet): 0

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:16
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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
7.3 Army Corps of Engineers will close Bayou Sorrel Locks to all navigation. The Coast Guard will close the Waterway to all power-driven vessels.
6.9 Bayou Sorrel Lock will not allow vessels to enter and vessels in the Waterway will be cleared out when the river is rising.
6.9 Bayou Sorrel Lock will not allow vessels to enter and vessels in the Waterway will be cleared out when the river is falling.
6.5 The Lower Grand River Waterway will be closed to all commercial traffic. One-way traffic may become established through Bayou Sorrel Waterway from Mile 37.6 to Mile 45 when the river is rising.
6 The Coast Guard will establish a No-Wake zone. A Safety Zone will be in place from Bayou Sorrel Locks to the Lower Grand River at Bayou Pigeon when the river is rising.
6 The Safety Zone will be cancelled at this level when the river is falling.
5.5 Coast Guard advises that mariners should slow speed and make no discernible wakes when the river is rising.
5.5 Gradual phase-down of restrictions will begin when the river is falling.
About This Location Collapse

Latitude: 30.130000° N, Longitude: 91.322500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 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  
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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: 30-Oct-2020 4:09 PM
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