What Is A Thunderstorm Class 7?

What is the main cause of thunderstorms?

Thunderstorms form when warm, moist air rises into cold air.

The warm air becomes cooler, which causes moisture, called water vapor, to form small water droplets – a process called condensation.

The cooled air drops lower in the atmosphere, warms and rises again..

What is the difference between a thunderstorm and a tornado?

A tornado is a violently rotating column of air that extends down from the base of a thunderstorm to the ground. … If this column gets caught in the thunderstorm updraft, its winds tighten, speed up, and tilt vertically, creating a funnel cloud.

Can humans cause thunderstorms?

But a recent study in the journal Geophysical Research Letters gives humanity the credit for at least some of our planet’s thunderstorms. The researchers found that pollution released by boats as they traverse shipping lanes can and does trigger lightning storms. A lot of lightning storms.

How are tornadoes formed Class 7?

A tornado is violent, twisted funnel of high speed wind. It is formed when a funnel like column of cold air sinks down from a story cloud. Warm air rises up which whirls up causing high speed circulating winds. They have relatively smaller diameter.

What are the dangers of thunderstorms?

Thunderstorms are dangerous storms that include lightning and can: Include powerful winds over 50 MPH; Create hail; and. Cause flash flooding and tornadoes.

What are interesting facts about thunderstorms?

11 Booming Facts About ThunderstormsWHAT GOES UP … Warm, moist air is the fuel that feeds a thunderstorm the energy it needs to survive. … THE TOP OF THE STORM GETS SMOOSHED. … RAIN DRAGS A STORM DOWN. … THERE ARE DIFFERENT TYPES OF THUNDERSTORMS. … HAIL BOUNCES AROUND LIKE POPCORN. … THUNDERSTORMS ARE ELECTRIFYING. … STORMS ARE PRETTY HEAVY. … THEY BLOCK OUT THE SUN.More items…•

Is it safe to drive a car in a thunderstorm?

According to Accuweather, people think that rubber tyres on a car protect the driver and passengers from a lightning strike – however, this is a myth. You can still be struck by lightning in your car, but you are protected from it – this is because your car acts like a ‘Faraday cage’.

Can I use my phone during a thunderstorm?

Using a corded telephone during a thunderstorm is discouraged because the phone is physically connected by wires to the outside. A cellphone, however, has no such physical connection and the electric current from a nearby lightning strike cannot reach it. It is perfectly safe to use a cellphone during a thunderstorm.

How is Thunder formed?

Thunder is caused by lightning, which is essentially a stream of electrons flowing between or within clouds, or between a cloud and the ground. The air surrounding the electron stream is heated to as hot as 50,000 degrees Farhenheit, which is three times hotter than the surface of the sun.

What is a thunderstorm easy definition?

Thunderstorm, a violent short-lived weather disturbance that is almost always associated with lightning, thunder, dense clouds, heavy rain or hail, and strong gusty winds. Thunderstorms arise when layers of warm, moist air rise in a large, swift updraft to cooler regions of the atmosphere.

Is it safe to walk in a thunderstorm?

If you hear thunder, you are close enough to be struck by lightning. REMEMBER: There is NO PLACE outside that is safe during a thunderstorm!

What are 3 facts about lightning?

10 striking facts about lightningThe speed of lightning. … When lightning strikes a beach. … The most lightning-struck location in the world. … Helicopters cause lightning. … 1,400,000,000 strikes every year.Lightning destroys trees. … But it can help plants grow. … The width of a thumb and hotter than the sun.More items…

What area gets the most thunderstorms?

The area that experiences the most thunderstorm days in the world is northern Lake Victoria in Uganda, Africa. In Kampala thunder is heard on average 242 days of the year, although the actual storms usually hover over the lake and do not strike the city itself.

How a storm is formed?

Storms are created when a center of low pressure develops with the system of high pressure surrounding it. This combination of opposing forces can create winds and result in the formation of storm clouds such as cumulonimbus.

What is the structure of tornado?

The three-dimensional structure of the tornado takes the funnel shape, i.e. when the tornado comes into being, there always exists a funnel-shaped cloud column similar to a trunk, which twists downwards from the convective clouds. At this moment, the horizontal and vertical velocities are usually much larger[5].

What is Tornado answer?

A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and sky/ cloud. They are often referred to as twisters, whirlwinds, hurricane or cyclones. It is created when two winds flowing opposite to each other collide with drastic/ destructive speed or power.

How do thunderstorms form short answer?

The Short Answer: Unstable air forms when warm, moist air is near the ground and cold, dry air is above. Lift comes from differences in air density. It pushes unstable air upward, creating a tall thunderstorm cloud.