The National Hurricane Center says an area of disturbed weather in the Gulf of Mexico now has a "high" probability of 60% of developing into a depression or tropical storm over the next 48 hours.
However, forecasters say the system will mainly bring a threat of heavy rains to Florida, and is not expected to threaten Louisiana. Most computer models of the disorganized system still show it tracking to the northeast toward the Florida peninsula.
WWL-TV Meteorologist Alexandra Cranford says she would not be surprised if the system does become a depression or a weak tropical storm before making landfall in Florida later this week.
"It's going to mean increased moisture in our atmosphere in Southeast Louisiana, so I'm bumping up our chance of rain on Thursday to 30%, and on Friday to 40%.
Experts are predicting a busier-than-normal hurricane season this year.