According to the hurricane center, Melissa has a significant possibility of making landfall on Jamaica as a major hurricane and could maintain major hurricane strength when it reaches eastern Cuba. Forecasters say Melissa poses little to no risk for Florida and the U.S. at this time.

With the 11 p.m. Thursday advisory, Melissa was about 150 miles southeast of Kingston, Jamaica and 270 miles southwest of Port-au-Prince, Haiti, creeping north at only 3 mph and packing maximum sustained winds near 45 mph. Tropical-storm-force winds extended outward up to 140 miles from the center, underscoring the storm's broad reach.

Though the risk to Florida is low, parts of the Caribbean are in peril. Tropical Storm Melissa is expected to power up to a major hurricane. Though its chances of affecting Florida are low, it can't be ruled out.

Officials have warned that Tropical Storm Melissa, which has already killed four people, could spark a "humanitarian disaster" as it's forecast to rapidly intensify into a major hurricane. Melissa remained nearly stationary in the central Caribbean on Friday,

Melissa intensified Saturday afternoon into a Category 1 hurricane. It will continue to strengthen before making landfall as a Major Category 4 hurricane in Jamaica on Tuesday. The storm will drop two to three feet of rain on the island, creating catastrophic and life-threatening flash flooding and landslides.

Tropical Storm Melissa is expected to rapidly intensify over the weekend into a Category 4 hurricane, and could get even stronger. Tropical Storm Melissa is expected to rapidly intensify over the weekend into a Category 4 hurricane, according to the National Hurricane Center.