Erin became a "catastrophic" Category 5 hurricane in the Caribbean on Saturday and is expected to strengthen further during the day, the National Hurricane Center reported. The storm is currently 105 miles (170 kilometers) north of Anguilla with maximum sustained winds of 160 mph (255 kph).

Hurricane Erin rapidly intensified into a Category 4 storm in the Caribbean, earlier than forecasters had predicted.

The National Hurricane Center is tracking Tropical Storm Erin, which is expected to become a hurricane later this week.

As of the latest advisory on Aug. 11, Invest 97L has a high chance — 90% — chance of strengthening in the next seven days.

Tropical Storm Erin -- which is forecast to strengthen into the first hurricane of the Atlantic season by Saturday morning -- won't have a direct impact on the U.S., but it will bring dangerous rip currents to the East Coast.