Additional strengthening is expected as the storm is forecast to “remain a large and dangerous major hurricane through the middle of this week,” the National Hurricane Center said.

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.

As Erin grows in size, rough ocean conditions will affect a large portion of the western Atlantic. Forecast products may currently underestimate the likelihood of strong winds beyond 36 hours, as Erin’s wind field is larger than the typical storm used to generate those estimates.

Tropical Storm Erin's path puts some homeowners at heightened risk, as the storm starts building into a hurricane tracked by meteorologists.