Powerful Hurricane Erin has undergone a period of astonishingly rapid intensification — a phenomenon that has become far more common in recent years as the planet warms. It was a rare Category 5 for a time Saturday before becoming a Category 4,

Erin is the first hurricane to develop over the Atlantic this year, and meteorologists are closely tracking its path and forecast.

WPBF 25 First Warning meteorologists are tracking Erin, which became a Category 5 hurricane Saturday morning in the eastern tropical Atlantic Ocean, but has now weakened slightly to a Category 4.Erin is expected to strengthen back to a Category 5,