If hail occurs it is an indication that the storm has large amounts of energy and may be severe. These thunderstorms develop in warm, moist air in advance of eastward moving cold fronts.
Tornadoes can occur at any time of the year.
Peak tornado occurrence in North Carolina is March through May. The average tornado path is 1 to 2 miles long and about 50 yds wide. The average tornado moves from southwest to northeast, but have been known to move in any direction.