Today (6/01/2012) is the first day of the Atlantic Hurricane season. The season runs from June 1 to November 30. The long term average of named storms during this period is 12 with 6 hurricanes and 3 major hurricanes.
A hurricane is a tropical cyclone with maximum sustained winds between 74 mph and 110 mph. A major hurricane is a tropical cyclone with maximum sustained winds over 110 mph.
This year has already gotten off to a strong start with 2 tropical storms before the official start of the Atlantic Hurricane Season. May ended this year after producing Tropical Storm Alberto and Tropical storm Beyrl. The last time there were two tropical storms before June 1 was in 1908. Beyrl also had the distinction of being the strongest pre-season tropical cyclone to make landfall in the United States.