Learn More About Tornadoes
— -- Tornadoes are made up of a powerful mix of forces, but one of their most deadly qualities is their quick, often surprising approach. Read below for more information about how to recognize and prepare for an oncoming tornado.
Q: What is a tornado?
A. A tornado is a rotating column of air extending from a thunderstorm to the ground, whirling at destructively high spends of 250 mph or more. They are typically accompanied by a funnel-shaped cloud that extends to the ground. Tornadoes may appear transparent until they pick up dust or debris. In an average year, 800 tornadoes are reported nationwide.
Q. How do tornadoes form?
A. When wind direction changes and wind speed increases before a thunderstorm develops, a horizontal spinning effect is created in the lower atmosphere. The rising air within the thunderstorm upward air current tilts the rotating air from horizontal to vertical. Most violent tornadoes form within this 2- to 6-mile-wide area of rotation.
Q. What should you look for to identify likely conditions for tornadoes?
A. Watch for dark, often green-colored sky; large hail; wall cloud; a loud roar that sounds almost like a freight train. Some tornadoes appear as a visible funnel extending only partially to the ground. Look for signs of debris below the visible funnel.
Q. When are tornadoes most likely to occur?
A. Tornadoes can happen any time of the year and any time of day. In the Southern states, peak tornado season is from March through May. Peak times for tornadoes in the Northern states are during the summer. Tornadoes are most likely to occur between 3 p.m. and 9 p.m.
Q: How should I prepare for a tornado?
A: Stay tuned to weather forecasts for the most current information, watches and warnings. Develop an emergency plan for you and your family so you know where to take immediate shelter at home, at the office, at school or when outdoors.
Q: During a tornado, how should I protect myself?
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