Tornadoes are not usually connected with the strong thunderstorms of the humid summer. Downburst winds can produce numerous hazards to landscapes experiencing thunderstorms. Fire whirls usually are not as strong as tornadoes associated with thunderstorms. Summers are hot with levels of humidity which can cause spontaneous thunderstorms and rain showers. Tornadoes often develop from a class of thunderstorms known as supercells. They are usually associated with active weather, such as rain showers, thunderstorms, or heavy snow. Summers are hot and humid with frequent afternoon thunderstorms. Most of the rain falls as summer thunderstorms. Hail often accompanies the most severe thunderstorms. This allows meteorologists to predict tornado formations throughout thunderstorms. The area is vulnerable to hurricanes as well as floods and severe thunderstorms. Summers are often warm to hot and often quite humid with frequent thunderstorms. Funnel clouds form most frequently in association with supercell thunderstorms. Some of the most persistent severe thunderstorms, known as supercells, rotate as do cyclones. Summer rainfall is usually modest and delivered by passing thunderstorms or warm fronts.