TAMPA, Fla. — Hurricane Erin continues to churn over the Atlantic this weekend as a powerful Category 4 storm. Erin weakened slightly from earlier peak intensity, but remains a dangerous hurricane as it moves near the northern Caribbean.

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,