National Weather Service Advanced Hydrologic Prediction Service

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Visit https://www.weather.gov/owp/operations for access to new EXPERIMENTAL products and services from the National Water Center: National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook and the National Water Center Visualization Services, a suite of geospatial services depicting River Forecast Center and National Water Model information.

View the Enhanced Operating Capability Products and Services StoryMap here

Weather Forecast Office Shreveport, LA

West Gulf 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: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Attoyac Bayou near Chireno are issued as needed during times of high water, but are not routinely available.

Return to Area Map

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	26
Moderate Flood Stage:	22
Flood Stage:	14
Action Stage:	13.5
Low Stage (in feet):	0

Historic Crests
(1) 29.90 ft on 06/29/1902
(2) 26.01 ft on 01/30/1999
(3) 25.97 ft on 11/24/1940
(4) 25.20 ft on 07/26/1933
(5) 25.00 ft on 08/20/1915
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.51 ft on 05/01/2021
(2) 20.60 ft on 02/22/2020
(3) 19.65 ft on 05/21/2019
(4) 19.98 ft on 12/29/2018
(5) 20.48 ft on 12/10/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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

Show FEMA's National Flood Hazard Layers

Zoom Level:16

	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
26	Expect flooding along several thousands of acres of the entire length of Attoyac Bayou to continue for several days.
22	Expect moderate to severe lowland flooding of timber in and near the river floodplain. The bayou will continue to remain above flood stage for several days.
21	The bayou will continue to slowly fall during the next several days, and lowland flooding will gradually decrease.
19	Expect minor lowland flooding of boat ramps and pastures. Move livestock and equipment to higher ground.
16	Expect flooded paths and secondary roadways. Move livestock and equipment to higher ground.
14	Expect lowland flooding for the next several days of the heavily wooded floodplain. Ranchers that have cattle and equipment near the river should move them to higher ground.

About This Location

Latitude: 31.504167° N, Longitude: 94.304167° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	14 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	Not Available	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	169.58 ft	183.58 ft	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 Chireno

Additional Information

During periods of possible very heavy rainfall, river forecasts may take into account precipitation amounts expected 30, 36, or even 48 hours into the future from the forecast issuance time.

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
Shreveport Weather Forecast Office
5655 Hollywood Avenue
Shreveport, LA 71109
(318) 631-3669
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Page last modified: 2-Nov-2020 7:29 PM

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