Weather's Dozen: 2011 Breaks U.S. Billion-Dollar Disaster Record
Hurricane Irene hit the United States, first in North Carolina in August, and then traveled up the eastern seaboard. The tropical storm cost more than $7.3 billion and killed at least 45 people.
As reported by NOAA, Irene was the first hurricane to hit the United States since Ike in September 2008 and was the most significant tropical system to make a direct landfall in the Northeast since Hurricane Bob in 1991.
Here, heavy surf from approaching Hurricane Irene starts to pound the shore line, on Aug. 27, 2011 in Ocean City, Maryland.
Watch more: Hurricane Irene's Floodwaters Continue to Ravage Parts of Northeast