Hurricane Erin Weakens to Category 3 but Forecasters Warn of Storm's Overall Growth

Despite an initial warning of rapid growth, Hurricane Erin lessened to a Category 3 storm as of August 17. Fluctuations in categorization leave the tropical storm warnings in effect for Puerto Rico, the Virgin Islands, Turks and Caicos, as well as the Southeastern Bahamas, and an evacuation order is in place for Hatteras Island in North Carolina, US.

As the first Atlantic hurricane of 2025, Erin did reach Category 5 status. Its doubling and tripling in size during the season has caused worry of incoming rip currents along the United States’ southeast coast– especially the North Carolina Outer Banks. Forecasters warn of worsening conditions coming into the area for the following days this week, as Erin reached maximum sustained winds of 205kph this Sunday morning.

Worsening weather conditions are expected within 24 hours across warning areas, but the United States Coast Guard has allowed all ports in the area to reopen as of Sunday. While some forecasters warn of Erin’s impact across the whole United States east coast, there are also predicted to be new areas of impact.

Such rapid intensification of the hurricanes in the Atlantic has been linked to global warming, causing the atmosphere to hold more water vapor, ocean temperature to rise rapidly, and therefore more intense hurricane conditions to form.