Lake Charles, Louisiana — Heavy rain is already impacting southeast Texas and southwest Louisiana Friday evening, with an additional 2 to 4 inches expected to trigger flash flooding and dangerous travel conditions across Lake Charles, Lafayette, Beaumont, Alexandria and Port Arthur through 4 a.m. Saturday.
According to the National Weather Service in Lake Charles, storms will continue through the evening before gradually weakening overnight, with the most intense rainfall rates expected between 8 p.m. and midnight as a disturbance interacts with a stalled frontal boundary and deep Gulf moisture.
Rainfall rates may overwhelm drainage systems within minutes, leading to water-covered roads and rapid ponding along I-10 between Beaumont and Lake Charles and along I-49 near Lafayette. Low-lying neighborhoods and flood-prone underpasses, including areas near downtown Lake Charles and sections of Highway 90, are most at risk for flash flooding. Rising water along bayous and smaller waterways could also push onto nearby roads overnight.
This is part of a broader system producing repeated rounds of heavy rain across the Gulf Coast, increasing runoff on already saturated ground.
Drivers should avoid water-covered roads and never attempt to cross flooded streets, especially at night when depth is harder to judge. Residents should monitor alerts and be ready to move to higher ground if flooding develops.
The most dangerous flooding conditions will occur between 8 p.m. and midnight, when rainfall rates peak and roads become impassable in parts of southwest Louisiana and southeast Texas.
