Erin, the first hurricane of the season, exploded to a Category 5 hurricane Saturday, and despite fluctuations in intensity, the storm is remaining formidable this weekend. Here's where it could head in the week ahead.

Erin will likely cause heavy surf and rip currents along the Eastern Seaboard starting mid-next week, but nothing in the way of rain, surge, or wind.

Erin strengthened into a Category 1 hurricane on Friday morning east of the Caribbean Islands and is expected to keep strengthening through the weekend.