Overview

• The National Hurricane Center upgraded Erin to Category 4 late Sunday with sustained winds near 215 km/h, warning it will remain a large, dangerous hurricane for days.
• Puerto Rico experienced flash flooding and power outages that left more than 150,000 households without electricity as torrential rain bands swept the island.
• Dare County officials have ordered a mandatory evacuation of Hatteras Island as dangerous surf and rip current warnings stretch from Florida to New England.
• Erin reintensified to Category 4 after briefly weakening to Category 3, a rebound fueled by unusually warm Caribbean waters.
• Scientists link Erin’s rapid intensification to record-warm sea surface temperatures and warn it may foreshadow an especially active 2025 hurricane season.