Hurricane Season Closing

The 2011 Atlantic hurricane season officially comes to a close today and as we reflect on what was another active season, here’s a recap by the numbers, courtesy of NOAA.

Note to readers: NOAA’s totals include a post-storm upgrade of Tropical Storm Nate to hurricane status, and the addition of a short-lived unnamed tropical storm that formed in early September between Bermuda and Nova Scotia:

1: Irene was the only hurricane to make landfall in the United States in 2011 and the first to do so since Ike struck southeast Texas in 2008.

19: The total number of tropical storms this season, representing the third-highest total (tied with 1887, 1995 and 2010) since records began in 1951.

7: The number of tropical storms that became hurricanes in 2011, including three major hurricanes.

2005: The last year a major hurricane (Category 3, 4, or 5 with top winds of 111mph and greater) hit the U.S.

A few additional facts from other sources:

$4.3 billion: Estimated insured damages caused by Hurricane Irene, according to ISO as of November.

$52.1 million: The value of flood losses paid by the National Flood Insurance Program (NFIP) due to Hurricane Irene as of mid-November.

Also check out Dr. Jeff Masters’ Wunderblog for an excellent recap of the season.

And here’s the 2011 Atlantic hurricane season in 4.5 minutes, via YouTube and NOAAVizualizations:

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