Why some areas are at a high risk for tornadoes?
Most tornadoes are found in the Great Plains of the central United States – an ideal environment for the formation of severe thunderstorms. In this area, known as Tornado Alley, storms are caused when dry cold air moving south from Canada meets warm moist air traveling north from the Gulf of Mexico.
What does risk of a thunderstorm mean?
When an Enhanced risk area is issued, you should take it very seriously. Its presence means that government forecasters are confident enough that widespread storms will develop. It also means they believe these storms are capable of causing significant damage or even causing fatalities.
What do you do in a severe thunderstorm warning?
If a severe thunderstorm warning is issued, take shelter in a substantial building or in a vehicle with the windows closed. Get out of mobile homes that can blow over in high winds.
What is the biggest danger from being too close to a tornado?
Close to the center of a tornado, the high-speed winds rapidly switch direction as a tornado passes by, exposing everyone to deadly debris unless they are completely surrounded by walls on all sides. A highway overpass is an extremely dangerous place to be during a tornado!
Where is the highest tornado risk?
The Great Plains, the Midwest, the Mississippi Valley and the southern United States are all areas that are vulnerable to tornadoes. They are relatively rare west of the Rockies and are also less frequent in the northeastern states. Tornado Alley is a colloquial term for an area particularly prone to tornadoes.
Is severe thunderstorm bad?
Severe thunderstorms can produce tornadoes with little or no advance warning. No Severe Thunderstorms Expected, Lightning/ Flooding threats exist with all thunderstorms, Winds to 40 mph, Small hail. Isolated severe thunderstorms possible, Limited in duration and / or intensity.