Erin was a Category 3 hurricane Sunday, the National Hurricane Center said in its 11 a.m. ET update, with sustained winds of 125 mph, with tropical storm-force winds reaching out 205 miles. The storm is expected to continue to fluctuate in intensity,

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, churning through the Atlantic Ocean north of the Caribbean.