Erin formed in the eastern Atlantic Ocean on Monday and is strengthening as it moves westward. The NHC said there is still uncertainty about what impact it could have on states like Florida on the U.S. East Coast, as well as the Bahamas and Bermuda.

Hurricane status is likely to be achieved soon as Erin continues to organize and strengthen. Once winds reach 74mph it will be classified as a Category 1 hurricane. The Saffir-Simpson Scale helps us categorize the strength of tropical systems.