Florida is gearing up for what could be its biggest evacuation in seven years as Hurricane Milton strengthens over warm waters and heads toward major population centers including Tampa and Orlando. About 7 million people were urged to evacuate Florida in 2017 as Hurricane Irma bore down on the state.

Tropical Storm Milton formed on Saturday as forecasters expect the storm to quickly strengthen into a hurricane and race toward Florida.

Milton is likely to begin to brush by the top of the Yucatán Peninsula early Monday afternoon, according to the National Hurricane Center. By the same time Tuesday, the storm was