Hurricane Erin was a Category 4 storm again Monday morning and is expected to grow even larger and stronger, according to the latest advisory from the National Hurricane Center.

Hurricane Erin’s winds dropped on Sunday as it wobbled westward, bringing heavy rain across the Virgin Islands and Puerto Rico before turning north and probably restrengthening in the coming days.

Hurricane Erin is a sprawling Category 4 storm churning in the Atlantic Monday after exploding in strength at a historic rate this weekend. The storm’s enormous footprint is becoming the biggest concern as it brings heavy rain and gusty winds to islands far from its center and threatens to drive life-threatening rip currents and towering waves toward the eastern US coastline and Bermuda,

Hurricane Erin pelted parts of the Caribbean and was forecast to create dangerous surf and rip currents along the U.S. East Coast this week.

Erin is expected to produce dangerous surf and rip currents along the beaches of the Bahamas, much of the East Coast of the U.S., including Florida, and Atlantic Canada next week.