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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Bayou Dorcheat at Lake Bistineau Pool (ft)Flow (kcfs)Observed: 142.33 ft at 6:00AM Mar 16, 2024Observed: 142.33 ft at 6:30AM Mar 16, 2024Observed: 142.33 ft at 7:00AM Mar 16, 2024Observed: 142.33 ft at 7:30AM Mar 16, 2024Observed: 142.33 ft at 8:00AM Mar 16, 2024Observed: 142.33 ft at 8:30AM Mar 16, 2024Observed: 142.33 ft at 9:00AM Mar 16, 2024Observed: 142.33 ft at 9:30AM Mar 16, 2024Observed: 142.33 ft at 10:00AM Mar 16, 2024Observed: 142.33 ft at 10:30AM Mar 16, 2024Observed: 142.33 ft at 11:00AM Mar 16, 2024Observed: 142.33 ft at 11:30AM Mar 16, 2024Observed: 142.33 ft at 12:00PM Mar 16, 2024Observed: 142.32 ft at 12:30PM Mar 16, 2024Observed: 142.32 ft at 1:00PM Mar 16, 2024Observed: 142.31 ft at 1:30PM Mar 16, 2024Observed: 142.32 ft at 2:00PM Mar 16, 2024Observed: 142.32 ft at 2:30PM Mar 16, 2024Observed: 142.31 ft at 3:00PM Mar 16, 2024Observed: 142.31 ft at 3:30PM Mar 16, 2024Observed: 142.31 ft at 4:00PM Mar 16, 2024Observed: 142.32 ft at 4:30PM Mar 16, 2024Observed: 142.31 ft at 5:00PM Mar 16, 2024Observed: 142.32 ft at 5:30PM Mar 16, 2024Observed: 142.31 ft at 6:00PM Mar 16, 2024Observed: 142.31 ft at 6:30PM Mar 16, 2024Observed: 142.32 ft at 7:00PM Mar 16, 2024Observed: 142.32 ft at 7:30PM Mar 16, 2024Observed: 142.32 ft at 8:00PM Mar 16, 2024Observed: 142.33 ft at 8:30PM Mar 16, 2024Observed: 142.33 ft at 9:00PM Mar 16, 2024Observed: 142.33 ft at 9:30PM Mar 16, 2024Observed: 142.33 ft at 10:00PM Mar 16, 2024Observed: 142.34 ft at 10:30PM Mar 16, 2024Observed: 142.33 ft at 11:00PM Mar 16, 2024Observed: 142.34 ft at 11:30PM Mar 16, 2024Observed: 142.33 ft at 12:00AM Mar 17, 2024Observed: 142.33 ft at 12:30AM Mar 17, 2024Observed: 142.33 ft at 1:00AM Mar 17, 2024Observed: 142.32 ft at 1:30AM Mar 17, 2024Observed: 142.32 ft at 2:00AM Mar 17, 2024Observed: 142.32 ft at 2:30AM Mar 17, 2024Observed: 142.32 ft at 3:00AM Mar 17, 2024Observed: 142.33 ft at 3:30AM Mar 17, 2024Observed: 142.33 ft at 4:00AM Mar 17, 2024Observed: 142.34 ft at 4:30AM Mar 17, 2024Observed: 142.34 ft at 5:00AM Mar 17, 2024Observed: 142.34 ft at 5:30AM Mar 17, 2024Observed: 142.34 ft at 6:00AM Mar 17, 2024Observed: 142.33 ft at 6:30AM Mar 17, 2024Observed: 142.33 ft at 7:00AM Mar 17, 2024Observed: 142.33 ft at 7:30AM Mar 17, 2024Observed: 142.31 ft at 8:00AM Mar 17, 2024Observed: 142.33 ft at 8:30AM Mar 17, 2024Observed: 142.35 ft at 9:00AM Mar 17, 2024Observed: 142.36 ft at 9:30AM Mar 17, 2024Observed: 142.36 ft at 10:00AM Mar 17, 2024Observed: 142.37 ft at 10:30AM Mar 17, 2024Observed: 142.36 ft at 11:00AM Mar 17, 2024Observed: 142.37 ft at 11:30AM Mar 17, 2024Observed: 142.37 ft at 12:00PM Mar 17, 2024Highest Observation: 142.38 ft at 12:30PM Mar 17, 2024Highest Observation: 142.38 ft at 1:00PM Mar 17, 2024Highest Observation: 142.38 ft at 1:30PM Mar 17, 2024Highest Observation: 142.38 ft at 2:00PM Mar 17, 2024Highest Observation: 142.38 ft at 2:30PM Mar 17, 2024Highest Observation: 142.38 ft at 3:00PM Mar 17, 2024Highest Observation: 142.38 ft at 3:30PM Mar 17, 2024Observed: 142.37 ft at 4:00PM Mar 17, 2024Observed: 142.37 ft at 4:30PM Mar 17, 2024Highest Observation: 142.38 ft at 5:00PM Mar 17, 2024Highest Observation: 142.38 ft at 5:30PM Mar 17, 2024Observed: 142.37 ft at 6:00PM Mar 17, 2024Observed: 142.37 ft at 6:30PM Mar 17, 2024Highest Observation: 142.38 ft at 7:00PM Mar 17, 2024Observed: 142.37 ft at 7:30PM Mar 17, 2024Highest Observation: 142.38 ft at 8:00PM Mar 17, 2024Highest Observation: 142.38 ft at 8:30PM Mar 17, 2024Observed: 142.37 ft at 9:00PM Mar 17, 2024Observed: 142.37 ft at 9:30PM Mar 17, 2024Highest Observation: 142.38 ft at 10:00PM Mar 17, 2024Observed: 142.37 ft at 10:30PM Mar 17, 2024Highest Observation: 142.38 ft at 11:00PM Mar 17, 2024Observed: 142.37 ft at 11:30PM Mar 17, 2024Observed: 142.37 ft at 12:00AM Mar 18, 2024Highest Observation: 142.38 ft at 12:30AM Mar 18, 2024Observed: 142.36 ft at 1:00AM Mar 18, 2024Observed: 142.37 ft at 1:30AM Mar 18, 2024Observed: 142.37 ft at 2:00AM Mar 18, 2024Observed: 142.37 ft at 2:30AM Mar 18, 2024Observed: 142.37 ft at 3:00AM Mar 18, 2024Observed: 142.37 ft at 3:30AM Mar 18, 2024Observed: 142.37 ft at 4:00AM Mar 18, 2024Observed: 142.37 ft at 4:30AM Mar 18, 2024Observed: 142.37 ft at 5:00AM Mar 18, 2024Observed: 142.36 ft at 5:30AM Mar 18, 2024Observed: 142.36 ft at 6:00AM Mar 18, 2024Observed: 142.36 ft at 6:30AM Mar 18, 2024Observed: 142.37 ft at 7:00AM Mar 18, 2024Observed: 142.36 ft at 7:30AM Mar 18, 2024Observed: 142.35 ft at 8:00AM Mar 18, 2024Observed: 142.34 ft at 8:30AM Mar 18, 2024Observed: 142.35 ft at 9:00AM Mar 18, 2024Observed: 142.35 ft at 9:30AM Mar 18, 2024Observed: 142.34 ft at 10:00AM Mar 18, 2024Observed: 142.35 ft at 10:30AM Mar 18, 2024Observed: 142.35 ft at 11:00AM Mar 18, 2024Observed: 142.36 ft at 11:30AM Mar 18, 2024Observed: 142.36 ft at 12:00PM Mar 18, 2024Observed: 142.33 ft at 12:30PM Mar 18, 2024Observed: 142.33 ft at 1:00PM Mar 18, 2024Observed: 142.36 ft at 1:30PM Mar 18, 2024Observed: 142.34 ft at 2:00PM Mar 18, 2024Observed: 142.34 ft at 2:30PM Mar 18, 2024Observed: 142.35 ft at 3:00PM Mar 18, 2024Observed: 142.32 ft at 3:30PM Mar 18, 2024Observed: 142.35 ft at 4:00PM Mar 18, 2024Observed: 142.31 ft at 4:30PM Mar 18, 2024Observed: 142.33 ft at 5:00PM Mar 18, 2024Observed: 142.33 ft at 5:30PM Mar 18, 2024Observed: 142.31 ft at 6:00PM Mar 18, 2024Observed: 142.32 ft at 6:30PM Mar 18, 2024Observed: 142.33 ft at 7:00PM Mar 18, 2024Observed: 142.31 ft at 7:30PM Mar 18, 2024Observed: 142.32 ft at 8:00PM Mar 18, 2024Observed: 142.31 ft at 8:30PM Mar 18, 2024Observed: 142.32 ft at 9:00PM Mar 18, 2024Observed: 142.32 ft at 9:30PM Mar 18, 2024Observed: 142.32 ft at 10:00PM Mar 18, 2024Observed: 142.33 ft at 10:30PM Mar 18, 2024Observed: 142.32 ft at 11:00PM Mar 18, 2024Observed: 142.33 ft at 11:30PM Mar 18, 2024Observed: 142.34 ft at 12:00AM Mar 19, 2024Observed: 142.34 ft at 12:30AM Mar 19, 2024Observed: 142.35 ft at 1:00AM Mar 19, 2024Observed: 142.35 ft at 1:30AM Mar 19, 2024Observed: 142.36 ft at 2:00AM Mar 19, 2024Observed: 142.36 ft at 2:30AM Mar 19, 2024Observed: 142.36 ft at 3:00AM Mar 19, 2024Observed: 142.37 ft at 3:30AM Mar 19, 2024Observed: 142.37 ft at 4:00AM Mar 19, 2024Highest Observation: 142.38 ft at 4:30AM Mar 19, 2024Highest Observation: 142.38 ft at 5:00AM Mar 19, 2024Forecast: 142.4 ft 7:00AM Mar 19, 2024Forecast: 142.4 ft 1:00PM Mar 19, 2024Forecast: 142.4 ft 7:00PM Mar 19, 2024Forecast: 142.5 ft 1:00AM Mar 20, 2024Forecast: 142.6 ft 7:00AM Mar 20, 2024Forecast: 142.7 ft 1:00PM Mar 20, 2024Forecast: 142.7 ft 7:00PM Mar 20, 2024Forecast: 142.8 ft 1:00AM Mar 21, 2024Forecast: 142.9 ft 7:00AM Mar 21, 2024Forecast: 142.9 ft 1:00PM Mar 21, 2024Forecast: 142.9 ft 7:00PM Mar 21, 2024Highest Forecast: 143 ft 1:00AM Mar 22, 2024Highest Forecast: 143 ft 7:00AM Mar 22, 2024Highest Forecast: 143 ft 1:00PM Mar 22, 2024Highest Forecast: 143 ft 7:00PM Mar 22, 2024Highest Forecast: 143 ft 1:00AM Mar 23, 2024Highest Forecast: 143 ft 7:00AM Mar 23, 2024Highest Forecast: 143 ft 1:00PM Mar 23, 2024Highest Forecast: 143 ft 7:00PM Mar 23, 2024USGS--Water Resources of the United StatesLBUL1(plotting HPIRG) Graph Created (5:51AM Mar 19, 2024)ObservedForecast (issued 7:35PM Mar 18)Latest observed value: 142.38 ft at 5:00 AM CDT 19-Mar-2024. Flood Stage is 142.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NGVD29
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 Bayou Dorcheat at Lake Bistineau are issued as needed during times of high water, but are not routinely available.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Locations
Flood Categories (in feet)
Major Flood Stage: 145
Moderate Flood Stage: 144
Flood Stage: 142.5
Action Stage: 142
Low Stage (in feet): -9999

Historic Crests
(1) 150.16 ft on 03/13/2016
(2) 147.79 ft on 04/18/1991
(3) 147.48 ft on 11/04/2009
(4) 147.10 ft on 03/05/2001
(5) 145.48 ft on 02/01/1999
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 144.70 ft on 03/06/2021
(2) 142.61 ft on 04/06/2018
(3) 145.07 ft on 03/03/2018
(4) 150.16 ft on 03/13/2016
(5) 145.28 ft on 06/12/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 133.37 ft on 11/18/1983

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

Zoom Level:16
KML Image
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
149 Near record flooding of several thousand acres with numerous unstilted homes flooded.
147 Several unstilted homes face flooding. All lake roads inundated at this point.
145 Preparations for major flooding should be rushed to completion as the lake roads are cut off by high water. A few unstilted cabins may suffer overflow.
144 Most camps across the lake begin to flood. Some homes will also face flooding especially homes that are not stilted. Preparations for flooding should be rushed to completion.
143 Water begins to flow over Louisiana 164.
142.5 Expect some minor flooding of low area camps, however, all access roadways will remain open.
About This Location Collapse

Latitude: 32.328300° N, Longitude: 93.431100° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 142.5 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 0.00 142.5 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:

Additional Information Collapse
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.
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
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(318) 631-3669
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Page last modified: 2-Nov-2020 7:29 PM
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