Tuesday, July 16, 2025 – New York, 8:40 a.m. EDT — Meteorologists are closely monitoring a low-pressure system currently spinning off the Atlantic coast of Florida, with increasing indications that it may shift westward across the Florida Peninsula and into the Gulf of Mexico by Thursday. If this pattern continues, southern Louisiana, especially areas near New Orleans, Houma, Baton Rouge, and Lafayette, may begin experiencing direct impacts from the system by the end of the week.
Where the tropical system could go next
The National Hurricane Center (NHC) has recently updated its forecast for this disturbed weather system, now designated as Invest 93L. The probability of development into a tropical cyclone over the next 48 hours is set at 40%, a figure that holds steady over the full seven-day outlook. At present, the system remains disorganized, making it difficult for tropical models to accurately project a path or intensity.
Nonetheless, current modeling suggests a westward movement is highly probable, with divergence in paths occurring after the system enters the Gulf of Mexico. Some models show a potential landfall near Mobile, Alabama, while others push the system as far west as Terrebonne Parish in Louisiana. The most likely target area, however, remains southeastern Louisiana, near the mouth of the Mississippi River and New Orleans.
What Louisiana’s coast can expect by the weekend
While intensity remains uncertain, the potential for heavy rainfall is now a primary concern. According to the New Orleans/Baton Rouge Forecast Office of the National Weather Service, significant precipitation totals are forecast between Thursday and Saturday, depending on the eventual track and speed of the system.
The left panel of their latest forecast graphic presents the most probable rainfall scenario, suggesting widespread rain totals between 2 and 5 inches (50 to 125 mm) in the region. The right panel, illustrating a worst-case rainfall outlook, indicates the possibility of localized totals exceeding 8 inches (over 200 mm) in isolated pockets.
Further west along Interstate 10, cities like Lafayette and Lake Charles will likely remain dry until Thursday, when the leading edge of moisture begins pushing inland. By Friday, much of southwestern Louisiana is forecast to be under a threat of excessive rainfall, with localized flash flooding a possibility during peak hours.
What meteorologists are watching next
As of this morning, Invest 93L remains poorly organized, limiting the ability of forecast models to resolve a specific path. But once the system crosses into the warm Gulf waters, there is a window for strengthening, especially if upper-level winds remain favorable. Whether this results in a named storm remains uncertain, but residents across the Louisiana coastline should stay aware of rapidly changing conditions throughout the week.
The Weather Prediction Center is already flagging much of the Gulf Coast for elevated rainfall potential, with particular emphasis on Friday’s risk window. While flooding rains like those seen in past weak tropical systems are not currently expected, steady, prolonged downpours could cause drainage issues and minor flash flooding in low-lying or urbanized zones.
