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A tornado is classified as severe if it meets at least one of the following criteria:

  • Produces wind of at least 50 knots (58 mph)
  • Produces hail of at least 1 inch diameter (formerly 3/4 inch)
  • Produces a tornado.
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Q: What are three qualities that cause a thunderstorm to be classified as severe?
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Related questions

Is a severe thunderstorm watch better than a tornado watch?

Generally speaking, yes. A tornado watch means that tornadoes are possible. A severe thunderstorm watch means that severe thunderstorms are possible. Although severe thunderstorms can cause damage they are not nearly as destructive as tornadoes can be.


How are supercell an downbust alike?

A supercell is a very strong rotating thunderstorm. A downburst can be made by a supercell, so they are not alike. Any severe thunderstorm including supercells can cause downbursts


Why should you be on a lookout for tornadoes during a severe thunderstorm?

Severe thunderstorms can produce tornadoes. Tornadoes can cause serious damage or even total destruction of property and kill or injure people and animals.


Is a severe thunder storm watch better then a tornado watch?

Yes essentially. A severe thunderstorm watch means severe thunderstorms are possible. A tornado watch means tornadoes are possible. Severe thunderstorms can cause damage, but not nearly as much as tornadoes potentially can.


Is a Severe thunder storm watch good?

No. A severe thunderstorm watch means that severe thunderstorms are likely to occur within a region. This means there is a chance for damaging wind gusts, hail, and perhaps even tornadoes are possible. Severe thunderstorms can also cause floods.


Can a thunderstorm cause a tornado?

Yes. In fact a thunderstorm is the only thing that can cause a tornado.


What is the primary danger in a thunder storm?

The primary danger in a thunderstorm is the risk of being struck by lightning. Lightning can cause severe injuries or even death. It is important to seek shelter indoors or in a vehicle to stay safe during a thunderstorm.


What is the most damaging tornado classified as?

The tornadoes that cause the most severe damage are rated EF5 on the Enhanced Fujita scale


How are tornadoes and thunderstorms similar and different?

They are the same because they both are classified as storms and can cause damage via wind. They are different because a thunderstorm does not have a funnel of wind like a tornado. A tornado itself does not produce rain or lightning, but the thunderstorm that spawned the tornado can. Also, the winds in a tornado are more violent than those just caused by a thunderstorm.


How do you summarize the tornado?

A tornado is a violent vortex of air that can develop during a severe thunderstorm and are often made visible by a funnel-shaped cloud. Tornadoes can cause major damage to homes and buildings.


What would be the least likely result of a earthquake a fire or a thunderstorm?

A thunderstorm would never result from an earthquake. Earthquakes can cause fires by breaking gas lines and electrical wires, but there is no mechanism by which an earthquake could cause a thunderstorm.


Should you sit by windows in a storm?

Not during violent storms. In a violent storm, such as a severe thunderstorm, tornado, or hurricane, you should stay away from windows. It is possible in high winds for blown objects to crash through windows, breaking them. The flying glass can cause severe injuries.