While Erin is expected to take a northward turn in the Atlantic, a new system off the coast of Africa has the National Hurricane Center's attention.

Hurricane Erin has maintained 125 mph winds as it brought damaging impacts to parts of the Puerto Rico and the U.S. Virgin Islands on Sunday. The National Hurricane Center says the storm could undergo another intensification episode again becoming a Category 4 hurricane.

The storm will remain a major hurricane through the middle of the week, according to the National Hurricane Center.

The NHC said it currently expected Erin to become a Category 4 storm later Saturday but to eventually swerve away from the continental United States.

Erin is a Category 3 hurricane, the National Hurricane Center said in its 5 p.m. ET update Sunday, with sustained winds of 125 mph and tropical storm-force winds reaching out 205 miles. The storm is expected to continue to fluctuate in intensity and could double or even triple in size as it moves north and west,

Erin, the first hurricane of the season, is now forecast to become a Category 4 by Sunday. Here's where it could head in the week ahead.

The U.S. could see the landfall of its first hurricane this year in the coming weeks, as Tropical Storm Erin continues to build in the Atlantic. Current projections see the storm developing into a hurricane sometime in the next few days as it moves west across the ocean,