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

Maximum sustained winds have increased to near 140 mph, with higher gusts. Erin is a Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some additional strengthening is expected today. Erin will remain a dangerous major hurricane through the middle of this week.

Hurricane Erin is likely to restrengthen again as it passes east of the Turks and Caicos Islands and the southeast Bahamas on Monday after lashing the Caribbean with damaging winds and flooding rain.

While Erin won't hit the U.S., lifeguards along the East Coast are on alert for dangerous waves and rip currents this week. On Monday and Tuesday, Erin will bring large waves reaching 6 feet to the East Coast.