Erin, the first hurricane of the season, is now forecast to become a Category 4 by Sunday. Here's where it could head in the week ahead.

Hurricane Erin formed Friday and quickly escalated to a Category 4 storm with sustained winds of 130 mph. The current forecast path has the storm remaining far off the East Coast.

The system is expected to strengthen into a hurricane by Friday and could even become a major hurricane, according to experts.

Erin has strengthened into a hurricane as it approaches Puerto Rico and the Virgin Islands, bringing heavy rains that could cause flooding and landslides.

Hurricane Erin has surged to Category 4 storm status and could bring dangerous surf and rip currents to the Jersey Shore next week as it remains far out to see.

Tropical Storm Erin has begun strengthening as it streaks west across the Atlantic and is on track to reach hurricane status as soon as Friday, prompting tropical storm watches in the northern Leeward Islands.