Does a tornado affect a large area or a small area?
A tornado travels over the ground at about 45 km per hour (28 miles per hour) and goes about 25 km (16 miles) before losing energy and disappearing. An individual tornado strikes a small area, but it can destroy everything in its path.
How does a tornado affect an area?
They can cut through massive swaths of forest, destroying trees and wildlife habitat, and opening up opportunities for invasive species to gain ground. When tornadoes touch down, we brace for news of property damage, injuries, and loss of life, but the high-speed wind storms wreak environmental havoc, too.
What areas are at 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 is the diameter of the destructive part of the tornado?
The diameter of a tornado is between 50 and 1,000 m (average ~ 100 m); the wind speed according to the Enhanced Fujita scale (EF) is more than 105 km/h (EF0, see Table 1).
What places do tornadoes occur?
Where do tornadoes occur? Tornadoes occur in many parts of the world, including Australia, Europe, Africa, Asia, and South America. Even New Zealand reports about 20 tornadoes each year. Two of the highest concentrations of tornadoes outside the U.S. are Argentina and Bangladesh.
How big is an EF5 tornado?
The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.
Why are there no tornadoes in big cities?
It is a common myth that tornadoes do not strike downtown areas. The odds are much lower due to the small areas covered, but paths can go anywhere, including over downtown areas. … Downbursts often accompany intense tornadoes, extending damage across a wider area than the tornado path.