MIAMI — A more intense and larger Hurricane Erin hit sections of the Caribbean and was expected to generate hazardous surf and rip currents along the U.S. East Coast this week.

It strengthened back to a Category 4 hurricane with top sustained winds of 130 mph (215 kph) early Monday. Consequently, it approached the Southeast Bahamas, as reported by the U.S. National Hurricane Center based in Miami.

At around 5 a.m. Monday, Erin was approximately 105 miles (170 kilometers) north-northeast of Grand Turk Island and roughly 915 miles (1,470 kilometers) south-southeast of Cape Hatteras, North Carolina. The storm progressed northwest at 13 mph (20 kph).

The government of the Bahamas put a Tropical Storm Watch in place for the central Bahamas. Meanwhile, a Tropical Storm Warning continued for the Turks and Caicos Islands and the southeast Bahamas, according to the hurricane center.

Further intensification was expected on Monday followed by a gradual weakening, yet Erin was anticipated to persist as a large, major hurricane through midweek.

Hurricane-force winds extended up to 60 miles (95 kilometers) from the center and tropical-storm-force winds extend outward up to 230 miles (370 km). The area of strong winds is expected to grow more over the next few days. At that size, Erin will impact coastal areas even though it isn’t forecast to make a direct landfall.

Dare County, North Carolina, declared an emergency and ordered an evacuation beginning Monday of Hatteras Island on the Outer Banks, the thin stretch of low-lying barrier islands that juts far into the Atlantic. Several days of heavy surf and high winds and waves could wash out parts of N.C. Highway 12 running along the barrier islands, the National Weather Service said.

Erin, the year’s first Atlantic hurricane, reached an exceedingly dangerous Category 5 status Saturday with 160 mph (260 kph) winds before weakening.

“You’re dealing with a major hurricane. The intensity is fluctuating. It’s a dangerous hurricane in any event,” Richard Pasch of the National Hurricane Center said.

Erin’s outer bands pelted parts of Puerto Rico and the Virgin Islands with heavy rains and tropical-storm winds during the day Sunday.

That knocked out power to about 147,000 customers, according to Luma Energy, a private company that oversees the transmission and distribution of power on the island. More than 20 flights were canceled due to the weather. The Coast Guard allowed all ports in Puerto Rico and the U.S. Virgin Islands to reopen Sunday as winds and rains decreased.

Rough ocean conditions were forecast for parts of the Virgin Islands, Puerto Rico, Hispaniola and the Turks and Caicos. Life-threatening surf and rip currents were forecast into midweek for the Bahamas, Bermuda, the U.S. East Coast and Canada’s Atlantic coast as Erin turns north and then northeast.

Scientists have linked the rapid intensification of hurricanes in the Atlantic to climate change. Global warming is causing the atmosphere to hold more water vapor and is spiking ocean temperatures, and warmer waters give hurricanes fuel to unleash more rain and strengthen more quickly.