NHC advised that the Cayman Islands, western and central Cuba, northern Bahamas, South Florida and the Florida Keys could face tropical storm conditions.
Selma is about 80 miles (130 km) south-southeast of San Salvador where it is packing winds of 40 mph (65 kph), the hurricane center said in an advisory.
Tropical storm warnings were in place for parts of Cuba and the Bahamas, and a tropical storm watch was issued for the upper Keys and parts of southeastern Florida.More news: Two dead at university in Louisiana; shooter at large
Tropical Depression 18, which if it strengthens will be named Philippe, is now hovering over the southern coast of Cuba and moving toward the north-northeast at 25 miles per hour. A couple of brief tornadoes are also possible along the Florida Keys and southern Florida as early as Saturday afternoon and evening. It is expected to intensify some and become Tropical Storm Philippe by tonight, the hurricane center said.
The next named storm is Philippe.
While the system likely won't bring strong winds to Florida, it does have the potential to bring heavy rain and strong storms.
It's important to note regardless of Philippe's organization or further intensification in the next day, the impacts to Southwest Florida aren't expected to change. Watches are in effect for the Central Bahamas.