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Hydrograph River at a Glance Download
Atchafalaya River at Bayou Sorrel Lock Stage (ft)Observed: 5.8 ft at 7:00AM Apr 12, 2024Observed: 6 ft at 6:00AM Apr 13, 2024Observed: 6.2 ft at 7:00AM Apr 14, 2024Observed: 6.5 ft at 6:00AM Apr 15, 2024Highest Observation: 6.7 ft at 6:00AM Apr 16, 2024Forecast: 6.8 ft 1:00PM Apr 16, 2024Forecast: 6.8 ft 7:00PM Apr 16, 2024Forecast: 6.9 ft 1:00AM Apr 17, 2024Forecast: 6.9 ft 7:00AM Apr 17, 2024Forecast: 6.9 ft 1:00PM Apr 17, 2024Forecast: 6.9 ft 7:00PM Apr 17, 2024Forecast: 6.9 ft 1:00AM Apr 18, 2024Forecast: 6.9 ft 7:00AM Apr 18, 2024Forecast: 7 ft 1:00PM Apr 18, 2024Forecast: 7 ft 7:00PM Apr 18, 2024Forecast: 7 ft 1:00AM Apr 19, 2024Forecast: 7 ft 7:00AM Apr 19, 2024Forecast: 7 ft 1:00PM Apr 19, 2024Forecast: 7 ft 7:00PM Apr 19, 2024Forecast: 7 ft 1:00AM Apr 20, 2024Forecast: 7 ft 7:00AM Apr 20, 2024Forecast: 7 ft 1:00PM Apr 20, 2024Forecast: 7 ft 7:00PM Apr 20, 2024Highest Forecast: 7.1 ft 1:00AM Apr 21, 2024Highest Forecast: 7.1 ft 7:00AM Apr 21, 2024Forecast: 7 ft 1:00PM Apr 21, 2024Forecast: 7 ft 7:00PM Apr 21, 2024Forecast: 7 ft 1:00AM Apr 22, 2024Forecast: 7 ft 7:00AM Apr 22, 2024Highest Forecast: 7.1 ft 1:00PM Apr 22, 2024Forecast: 7 ft 7:00PM Apr 22, 2024Forecast: 7 ft 1:00AM Apr 23, 2024Forecast: 7 ft 7:00AM Apr 23, 2024Forecast: 7 ft 1:00PM Apr 23, 2024Forecast: 7 ft 7:00PM Apr 23, 2024Forecast: 7 ft 1:00AM Apr 24, 2024Forecast: 7 ft 7:00AM Apr 24, 2024Forecast: 7 ft 1:00PM Apr 24, 2024Forecast: 7 ft 7:00PM Apr 24, 2024Forecast: 7 ft 1:00AM Apr 25, 2024Forecast: 7 ft 7:00AM Apr 25, 2024Forecast: 7 ft 1:00PM Apr 25, 2024Forecast: 7 ft 7:00PM Apr 25, 2024Forecast: 7 ft 1:00AM Apr 26, 2024Forecast: 7 ft 7:00AM Apr 26, 2024Forecast: 7 ft 1:00PM Apr 26, 2024Forecast: 7 ft 7:00PM Apr 26, 2024Forecast: 7 ft 1:00AM Apr 27, 2024Forecast: 7 ft 7:00AM Apr 27, 2024Forecast: 7 ft 1:00PM Apr 27, 2024Forecast: 7 ft 7:00PM Apr 27, 2024Forecast: 7 ft 1:00AM Apr 28, 2024Forecast: 7 ft 7:00AM Apr 28, 2024Forecast: 7 ft 1:00PM Apr 28, 2024Forecast: 7 ft 7:00PM Apr 28, 2024Forecast: 7 ft 1:00AM Apr 29, 2024Forecast: 7 ft 7:00AM Apr 29, 2024BSRL1(plotting HGIRZ) Graph Created (8:40AM Apr 16, 2024)ObservedForecast (issued 9:40AM Apr 15)Latest observed value: 6.7 ft at 6:00 AM CDT 16-Apr-2024. Flood Stage is 12 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Atchafalaya River at Bayou Sorrel Lock are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at Morgan City
Flood Categories (in feet)
Major Flood Stage: 30
Moderate Flood Stage: 18
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 18.10 ft on 05/23/1973
(2) 17.40 ft on 05/28/2011
(3) 17.40 ft on 05/29/2011
(4) 13.71 ft on 03/16/2019
(5) 12.90 ft on 01/23/2016
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.71 ft on 03/16/2019
(2) 12.90 ft on 01/23/2016
(3) 17.40 ft on 05/29/2011
(4) 17.40 ft on 05/28/2011
(5) 12.40 ft on 04/28/2008
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 01/14/1964
(2) 0.00 ft on 10/18/1976
(3) 0.80 ft on 12/25/1989
(4) 1.00 ft on 10/09/2000
(5) 1.00 ft on 02/16/1977
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
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Gauge LocationGauge Map Marker
 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 Collapse
If you notice any errors in the below information, please contact our Webmaster
30 The top of the levee protecting the town of Bayou Sorrel will be reached. Evacuation is strongly recommended.
18 Over 500,000 acres on the Floodway Side of the levee will be inundated. Recreational areas will be closed.
12 On the Floodway Side (FWS) of the protection levee, recreational activity and navigation on Grand River and the Atchafalaya River main channel may be curtailed because of increased flow.
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 12 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 12 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  
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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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