The 2011 Atlantic Hurricane Season will end Wednesday on a quiet note, but not after going down in the record books as one of the most active on record.

On Monday, National Oceanic and Atmospheric Administration (NOAA) officials released a list of final statistics for the season, which included a post-storm upgrade of Tropical Storm Nate to hurricane status and the addition of a previously unclassified, unnamed tropical storm.

In all, 19 named tropical systems prowled the Tropical Atlantic Basin this season, with seven achieving hurricane status and three major hurricane status (Category 3 hurricane or stronger).

With 19 storms, 2011 goes in the record books as tied for the third-highest total since records began in 1851 (joining 1887, 1995 and 2010).

The unnamed tropical system, which formed in early September between Bermuda and Nova Scotia, was added to the list after an analysis of past satellite images by NOAA. The agency points out this storm could have gone undetected in the pre-satellite era.

Concerning the number of hurricanes, 2011 was fairly ordinary.

In a typical year, 11 storms are named, with six becoming hurricanes and two major hurricanes.

The last active tropical system in the Atlantic basin was Tropical Storm Sean on November 11th.

However, Hurricane Irene stood above the rest in reminding the east coast of the U.S. that it only takes one hurricane to make a memorable season.

On Aug. 27th, Irene became the first hurricane to make landfall in the U.S. mainland since Ike in 2008.

“Irene broke the ‘hurricane amnesia’ that can develop when so much time lapses between landfalling storms,” said Jack Hayes, Ph.D., director of NOAA’s National Weather Service.

Irene was responsible for 56 fatalities and $10.1 billion in damage, with homes, bridges and roads still in the process of being rebuilt from North Carolina to New England more than three months later.

Both AccuWeather.com and NOAA’s long-range forecast teams correctly predicted a busier-than-normal season.

You can view the original AccuWeather forecast, released this past spring, here, or take a look at stats from this season’s storms in our Hurricane Center.