According to forecasters at Colorado State University, the 2009 Atlantic hurricane season is expected to show average storm activity from June 1 to Nov. 30.

The forecasters cite an average of 12 storms for the active season, six of which will transform into hurricanes with two set to become intense hurricanes, which are defined by sustained winds of 111 miles per hour or more.

The Colorado state team has downgraded the prediction from December, when an average of 14 storms, seven hurricanes and three intense hurricanes were initially identified, Dow Jones reports.

Dow Jones noted that the 50-year seasonal average from 1950-2000 is 9.6 storms, 5.9 hurricanes and 2.3 intense hurricanes.