What causes severe weather
What is a large region of air that has similar temperature and humidity?
Air Mass
What is a rainstorm, that has lightning and thunder, called?
Thunderstorm
What is a rotating funnel-shaped cloud that stretches from the clouds to the ground?
Tornado
When winds reach more than 117km per hour, a tropical storms becomes what?
A hurricane
What is a seasonal change of wind that brings heavy rain?
Monsoon
The boundary of different air masses meeting each other is known as...?
Front (Cold front/Warm front)
Where in the world can thunderstorms occur?
All over the world
What's in the middle of a tornado?
Low pressure closure
What's the middle of a hurricane called?
The eye
Apart from thunderstorms, hurricanes, and tornadoes, name another type of severe weather.
Monsoon, heavy rains, fog, typhoon
Name one (of 2) indicators that a storm could be coming
Drop in temperature / a change in the clouds
What makes thunder?
Rapidly expanding air
What rises up the center of the spinning cloud?
Warm air
What's in the middle of a hurricane?
Low pressure closure
A storm with a low pressure closure that causes a circular pattern of winds is known as?
Cyclone
What happens when a cold air mass meets a warm air front?
The cold air moves under and pushes the warm air up
What is a thunderhead?
The top of clouds where it flattens out
Why are tornadoes most common in 'tornado alley'?
cold, dry, air from Canada meets warm, moist air from the Gulf of Mexico
Explain what a storm surge is?
During a hurricane waves get bigger and water levels rise. Coastal areas are at risk of flooding
Apart from advection fog, what is another type of fog?
Tule Fog
What causes storms?
a collision of air masses that have different temperatures and humidity
What causes lightning?
Particles move in different directions and create a spark as they rub together
The power of tornadoes is measured on the Enhanced Fujita (EF) scale, how many levels are there?
5 (1 - 5)
Explain the Coriolis Effect.
Winds that reach the equator, surround low pressure air, causing it to rotate to the right
What is advection fog?
Warm, humid air, flows over cold ground (or water) creating low clouds, or fog