Hurricane Erin brings swells to Florida. It's ideal for surfing but dangerous for beachgoers who see blue skies, but don't realize the dangers.

Hurricane Erin's higher tides and big waves are battering much of the East Coast, with the huge storm prompting the expansion of tropical storm and coastal flooding advisories Wednesday.

Impacts from Hurricane Erin, a category two hurricane, are expected to begin in North Carolina on Wednesday.

The National Hurricane Center warned that roads in the low-lying barrier islands may become impassable, with waves as high as 20 feet crashing ashore.