Flash flooding, heavy rain, and a possible tropical system threaten July 4th plans across Florida and the Southeast. This live blog is now closed.

S evere thunderstorms are expected to cause significant travel disruptions in the Northeast as millions of Americans prepare for the Fourth of July holiday. According to the National Weather Service (NWS),

Fourth of July travelers are in for traffic and flight delays this week as a cold front pushing across the U.S. is forecast to bring storms to the eastern half of the country, which could culminate in a washout on July Fourth for the Southeast.