As of Tuesday morning, a storm surge watch is in effect for oceanside areas along the Outer Banks, along with a tropical storm watch for most of coastal North Carolina, The News & Observer previously reported, with evacuations underway for multiple counties.

Hurricane Erin is forecast to "substantially grow in size" as it moves across the western Atlantic, according to the National Hurricane Center.

Tropical Storm Watches and Warnings have been issued for Virginia and North Carolina respectively. FOX Weather Hurricane Specialist Bryan Norcross has the latest expected impacts for the East Coast.

Two more tropical systems trail Hurricane Erin, which is following a projected course that brushes past the East Coast without making landfall.

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. National Hurricane Center

Hurricane Erin was a Category 4 storm Monday morning and is expected to retain major hurricane status through the middle of the week.

Hurricane Erin on Tuesday remained a major hurricane as headed north in the Atlantic prompting coastal advisories for Florida while the National Hurricane Center kept track of two tropical waves

Forecasts nudge Erin's likely path to the west, increasing the risks at U.S. beaches. Experts say the storm's massive size, rather than windspeed, is what makes it a threat.