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.

Hurricane Erin has strengthened to a Category 4 storm as it threatens to bring life-threatening surf and rip currents to the eastern coast of the United States. The rains caused by the storm are already beginning to hit the south-eastern Bahamas,

There is a risk for dangerous surf and life-threatening rip currents along the entire east coast, including most of Florida.