LOUISIANA FLOW REPORT
Last Updated: December 29, 2025
Louisiana's rivers and streams are exhibiting varied streamflow conditions, with many waterways currently experiencing lower than average flows. Notably, the Mississippi River at Baton Rouge is running at 164,000 cubic feet per second (cfs), which is significantly below its normal rate, marked by a -66.68 percent normal flow and a gage height of 5.75 feet. This drop in streamflow may affect water enthusiasts by altering conditions for activities such as boating and fishing. Similarly, the Amite River near Denham Springs shows a substantial decrease in flow at -81.13 percent normal, with a current gage height of 10.24 feet. These lower flows are indicative of potential flow droughts across the state.
In contrast, the Vermilion River at Perry has seen a dramatic increase of 143.96 percent in streamflow over the last 24 hours, with a current streamflow of 1,920 cfs, which is above the usual for this time of year at 11.49 percent normal, and a gage height of 5.21 feet. This sudden surge could raise concerns over potential flooding in nearby communities and may impact popular whitewater trails, calling for caution among river users. Additionally, the Bayou Courtableau at Washington has experienced a significant 24-hour increase in streamflow of 30.69 percent, although it remains well below the average flow at -83.2 percent normal. Water enthusiasts should note these fluctuations as they may influence river navigation and local ecosystems. It's important to stay updated on streamflow conditions, particularly during this period of variable water behavior across Louisiana's rivers and watersheds.
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 29 2025
ASSUMPTION; ST. JAMES; ST. JOHN ...
Residents across Louisiana, particularly in Concordia, south central and southwest Louisiana, as well as parts of southeast Louisiana including Lower Tangipahoa, Pointe Coupee, Southeast St. Tammany, Southern Livingston, Southwestern St. Tammany, and West Baton Rouge Parishes, are advised to prepare for a severe cold snap and strong northerly winds. The National Weather Service has issued multiple advisories indicating wind speeds of 15 to 25 mph with gusts up to 40 mph, and wind chills potentially dropping to the upper teens, raising concerns for hypothermia and power outages due to fallen tree limbs. These conditions are expected to persist into early morning hours. Authorities also warn of increased fire weather risks due to low humidity and gusty winds. Citizens are urged to secure outdoor objects, avoid prolonged exposure to the cold, and heed any directives from local officials.