LOUISIANA FLOW REPORT
Last Updated: December 25, 2025
River and water enthusiasts in Louisiana should note several key streamflow trends and significant observations from the current data. Overall, river flows across the state are significantly below the normal ranges for this period, with many reporting decreases in streamflow over the last 24 hours. Notably, the Mississippi River at Baton Rouge, a major waterway, shows a current streamflow of 134,000 cubic feet per second (cfs), which is 72.02% below the normal, accompanied by a recent decrease of 4.96 cfs. Similarly, the Lower Atchafalaya River at Morgan City is at 33,800 cfs, 68.95% below normal, although it experienced a slight increase of 33.6 cfs. Such deviations from normal flows could impact cities and ecosystems that depend on these rivers.
The Pearl River near Bogalusa, vital for whitewater trails and ecological diversity, is flowing at 2,420 cfs, a worrying 71.19% below the typical flow, which could affect recreational activities and local wildlife. The Bayou Courtableau at Washington is experiencing one of the most significant deficits at 83.41% below normal, with a current streamflow of only 204 cfs. Additionally, the Bayou Pierre near Lake End is at a mere 132 cfs, which is 87.16% below the norm. Such low flows indicate potential flow droughts in these areas, raising concerns for water availability and health. Conversely, the Bayou Lafourche at Thibodaux is showing a positive deviation from the norm by 15.4%, although the flow has decreased slightly in the last day. River users and local authorities should be aware of these trends, as low streamflows can lead to ecological impacts and higher-than-normal streamflows may forecast flooding events, necessitating close monitoring and potential preparedness measures.
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 25 2025
Residents of southeast Louisiana, including major areas such as New Orleans, Baton Rouge, and Shreveport, are advised to exercise caution due to a Dense Fog Advisory in effect until 10:00 AM CST. Visibility may drop to one quarter mile or less, creating treacherous driving conditions. The fog is widespread, affecting central and northeast regions, including Grant, La Salle, Winn, Natchitoches, and Sabine Parishes. Motorists are urged to drive with extreme care or delay travel until visibility improves after the advisory lifts. Stay tuned to local weather updates and adhere to any additional warnings issued by the National Weather Service.