A disturbance in the Caribbean strengthened into Tropical Storm Rafael on Monday afternoon. The storm is forecast to become a hurricane on Tuesday.

Rafael, previously known as Potential Tropical Cyclone 18, formed on Sunday. As of Monday at 4 p.m. ET, it was about 175 miles south of Kingston, Jamaica, with maximum sustained winds of 45 mph, and moving north at around 9 mph, according to the National Hurricane Center (NHC). 

Rafael is the 17th named storm of the Atlantic hurricane season and…