Hurricane Erin is tracking northwest between the U.S. East Coast and Bermuda, bringing dangerous surf and life-threatening rip currents to Florida and the Carolinas through midweek.

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 on Wednesday grew in size as it made its way up into the Atlantic off the U.S. East Coast with tropical-storm conditions forecast to hit North Carolina and dangerous surf left

The National Hurricane Center is tracking four systems in the Atlantic, including Hurricane Erin and Invest 99L.

Conditions along the Florida coast are expected to deteriorate Wednesday as Hurricane Erin moves north-northwest off Florida.

Natural disasters have long posed singular risks for people in the United States without permanent legal status.

The massive hurricane was picking up speed, traveling north at 14 mph, and its center was located about 295 miles south-southeast of Cape Hatteras, North Carolina. A tropical storm warning is in effect for parts of North Carolina and Virginia as the impacts from Erin spread northward.

Weather hazard maps have nearly 100 colors including six variations of red, a "bisque," "moccasin," cornflower blue, and Dodger blue. Experts are working to simplify the alerts.