Earl Now Major Hurricane, Headed Toward East Coast

Hurricane Earl has strengthened into a major Category 3 storm Monday and could arrive off the East Coast of the U.S. by the end of this week.

It is currently rocking the Caribbean's Northern Leeward Islands.

The National Hurricane Center said Earl is now the second major hurricane of the 2010 Atlantic season, with winds up to 120 miles per hour .

Hurricane warnings are in effect for Antigua, Barbuda, Montserrat, St. Kitts & Nevis, Anguilla, St. Martin and St. Barthelemy, St. Maarten, Saba and St. Eustatius, the British and the U.S. Virgin islands.

A hurricane watch is also in effect for Puerto Rico.

Hurricane Danielle has moved into the North Atlantic and is now more of a threat to Iceland than the U.S.