National Weather Service United States Department of Commerce


National Weather  Service Discontinues the River Forecast Point on the Atchafalaya River at Myette Point (GNDL1)

The National Weather Service Weather Forecast Office (WFO) in Lake Charles, La., and the Lower Mississippi River Forecast Center (LMRFC) in Slidell, La., will discontinue hydrologic services on Wednesday, June 27, 2018, for the Atchafalaya River at Myette Point/Grand Lake, Louisiana. The gauging operations at this location have been discontinued and no water level readings are available.

This change has been coordinated with local, parish, state and federal stakeholders. Forecast services for this reach will be merged with Butte La Rose (BLRL1) upstream and Morgan City (MCGL1) downstream.

To get the latest information other river forecast points, please visit our website at and click on Central Louisiana.  The Advanced Hydrologic Prediction Service Page provides current and forecast river information, warnings, gage locations, impacts, and historical crest information for 46 points in southeast Texas and southwest Louisiana.

WFO Lake Charles provides all the weather services for 22 counties and parishes  in southeast Texas, southwest and central Louisiana. The WFO collects hydrometeorological data, prepares and disseminates weather forecasts, river and flood forecasts and warnings; and issues severe weather watches and warnings to the public. Additional information is available at

The LMRFC prepares river stage forecasts for the major rivers and creeks in the lower Mississippi River Valley. The river forecast center’s area of responsibility includes most of Tennessee, Arkansas, Mississippi and Louisiana, and parts of surrounding states including Virginia, North Carolina, Georgia, Alabama, Kentucky, Illinois, Missouri and northeast Texas.

Additional information is available at