LOUISIANA FLOW REPORT
Last Updated: December 23, 2025
Louisiana's rivers and streams are currently exhibiting a mix of below-average streamflows and decreasing levels, signaling a potential concern for both water enthusiasts and ecosystems reliant on these waterways. Notably, the Mississippi River at Baton Rouge, a major artery for recreation and commerce, shows a streamflow of 142,000 cubic feet per second (cfs), which is 69.65% below normal, accompanied by a gage height of 4.84 feet, indicating lower water levels that may affect boating and river transport. Similarly, the Atchafalaya River at Simmesport, another significant waterway, presents a 68.88% decrease from normal flow levels, with a current streamflow of 65,000 cfs. Such substantial reductions across these water bodies could lead to flow droughts impacting cities, agriculture, and natural habitats along these rivers.
In contrast, the Bayou Lafourche at Thibodaux shows an increase of 21.34% above the norm with a streamflow of 381 cfs, raising some concerns over potential localized flooding, especially during heavy rainfall events. Recreational users such as kayakers on whitewater trails should exercise caution, particularly on rivers like the Little River near Rochelle, with a drastically low flow (94.03% below normal) and high gage height of 5.99 feet, which may indicate abnormal river conditions. These varied conditions underscore the importance of monitoring streamflow and gage height data for safety and environmental management, as rivers like the Pearl, Bogue Chitto, and Bayou Bartholomew also show significant streamflow deviations from normal levels, which could affect both seasonal recreational activities and the health of Louisiana's aquatic ecosystems.
Louisiana is a state in the southern United States with a humid subtropical climate. The state has many major surface water flows, including the Mississippi River, the Atchafalaya River, the Red River, the Ouachita River, and the Sabine River. These rivers and their tributaries are subject to flooding during the state's frequent severe weather events, such as hurricanes and tropical storms. Louisiana also has numerous reservoirs and dams used for flood control and hydroelectric power generation. The state's hydrology is influenced by its flat terrain and extensive wetlands, which act as natural reservoirs. Snowpack is generally not a significant factor in Louisiana's hydrology, but heavy rainfall events can lead to flash flooding and river flooding.
Winter Storm Warnings
December 23 2025
Residents across southeast Louisiana, including Avoyelles, Evangeline, St. Landry, Lafayette, Lower St. Martin, Upper Iberia, Upper St. Martin, Upper St. Mary, and Northern Acadia Parishes, are advised to exercise caution as Dense Fog Advisories are in effect. Visibility is expected to be reduced to a quarter mile or less, creating treacherous driving conditions. The National Weather Service advises that the dense fog could persist intermittently until the morning of December 24. Please avoid unnecessary travel, use headlights, and leave ample distance between vehicles when driving. Stay tuned to local weather updates for the latest advisories.