Leslie had winds of 40 miles per hour as it became a tropical storm in the Atlantic late Wednesday. Forecasters expect it to become a hurricane in a couple of days as it slowly moves northwest, the National Hurricane Center said in its latest advisory.

Leslie has been upgraded into a hurricane after strengthening over the Atlantic Ocean on Friday, according to the National Hurricane Center. >> Video above: A look at Milton in the Gulf of Mexico Sign up for our NewslettersHurricane Leslie has maximum sustained winds of 80 mph and a minimum central pressure of 985 mb.