"Heavy rain is already moving through Louisiana and will continue over the next few days," AccuWeather's Alex DaSilva said.

The Florida Panhandle will see heavy rainfall from Invest 93L after it reaches the Gulf on Wednesday. The greatest threat to the area at the moment is flash flooding in low-lying, poor-drainage areas and urban locations. Invest 93L is currently expected to make landfall near Louisiana's southeastern coast Thursday morning.

North Carolina has declared a state of emergency after Tropical Storm Chantal caused severe flooding and at least six deaths. Gov.

The chances of invest 93L—a disturbance over the Gulf Coast with the potential to become Tropical Storm Dexter—developing into a cyclone have fallen, according to the National Hurricane Center (NHC).

The National Hurricane Center is tracking Invest 93L. Could tropical storm Dexter develop? What is the weather forecast for travel? What we know

Hurricane center forecasters said the system, designated as Invest 93L, is forecast to continue moving westward and could emerge or redevelop.

NC Governor Stein visits Chapel Hill to survey Tropical Storm Chantal damage and meet with affected residents.

This is because dusty, dry, Saharan air – one of the Atlantic's biggest limiting factors – typically disperses and allows tropical waves to produce tall thunderstorms. These thunderstorms lead to a healthier system and could eventually lead to the formation of a tropical depression or storm.