As of 7 a.m. CDT Monday, the center of Category 4 Hurricane Erin was located about 115 miles north-northeast of Grand Turk Island, or 890 miles south-southeast of Cape Hatteras, N.C., and was tracking to the northwest at 13 mph.

Swells triggered by the storm will create rough ocean conditions across the eastern seaboard this week, forecasters say.

Could Tropical Storm Erin strengthen into a massive hurricane for the East Coast? Get updates on the development in the Atlantic Ocean here.