In addition to flash flooding, the weather service says tornadoes are possible through Monday night across the southern and west-central Florida peninsula. It is also not expected to strengthen into a hurricane; it will likely stay tropical storm strength. The area has already been heavily impacted by this summer's so-called "red tide"- massive algae blooms that have caused waves of dead marine life to wash up along the coast.
A Hurricane Center forecast map showed the storm making landfall on Tuesday evening near the Alabama-Mississippi border.
Right now, maximum sustained winds are near 30 miles per hour with higher gusts, according to the NHC.
A hurricane watch has been issued for portions of the central U.S. Gulf Coast as Tropical Storm Gordon approaches.
Panama City and much of the Panhandle could see between 1.00 and 1.5 inches of rain through Thursday. The change means that tropical storm conditions are next expected and not just possible in the warning area. A weather system becomes a tropical storm when winds reach 39 miles per hour.
Florence isn't now a threat to land and it's still unclear what impact the storm will have on Bermuda.
This storm will move into the Gulf of Mexico today and track northwest. A rip current risk warning is in effect from 8am Sunday through Monday evening. Some forecast models are taking it to the north into the waters of the mid-Atlantic while others are taking Florence farther west.