Alberto had top sustained winds of 40 mph early Friday and was located 55 miles south of Cozumel, Mexico. The storm was moving north-northeast at 6 mph. The storm is expected to bring heavy rain to the Yucatan Peninsula, western Cuba, Florida and the northeastern Gulf Coast throughout the weekend.
ARE YOU STORM READY? Watch the ABC11 2018 Hurricane Special
A subtropical storm has a less defined and cooler center than a tropical storm, and its strongest winds are found farther from its center. Subtropical storms can develop into tropical storms, which in turn can strengthen into hurricanes.
Hurricane season officially begins June 1, but a tropical storm does occasionally form before then, including the past three hurricane seasons.
Here's what we can expect for the 2018 hurricane season
A look back at the 2017 hurricane season
North Carolina volunteers play crucial role during hurricane season
SC is home to the only facility in the world that can test two-story homes under life-like hurricane winds