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.

Hurricane Erin remained a Category 4 storm throughout the day. Here's a look at the latest forecast and spaghetti models.

"We cannot put this more bluntly: we now EXPECT there will be times over the next week that N.C .12 becomes impassable due to significant ocean overwash," OBX transportation officials said.

Hurricane Erin is expected to grow in size and strength as it moves north through the Atlantic this week. Forecasters expect it to pass well offshore of North Carolina on Wednesday and Thursday, but say it likely will cause coastal flooding and erosion, along with dangerous rip currents.