A huge body of air in the lower atmosphere that has similar temperature, humidity, and air pressure at any given height.
What is an Air Mass?
100
The result of when a warm air mass overtakes a cold air mass and the warm air moves over the cold air. If the warm air is humid, light rain or snow falls. If the air is dry, clouds will form.
What is a warm front?
100
This swirling mass of air spins counter-clockwise in the southern hemisphere.
What is an anticyclone?
100
High pressure is represented as this on a map
The letter H
100
An air mass that is humid because it forms over the ocean.
What is a maritime air mass?
200
Scientists classify air masses according to both temperature and humidity.
How do scientists classify air masses?
200
When warm air rises, expands, then cools.
What is a cold front?
200
High pressure centers of dry air, where the winds spiral outwards.
What is an anticyclone?
200
The type of air masses that commonly form over Florida.
What are sub-tropical air masses?
200
The result of the interaction of 2 or more air masses.
What is a front?
300
An air mass with high air pressure.
What type of air pressure do polar air masses have?
300
when a warm air mass is cut off from the ground
What is an occluded front
300
This swirling mass of air spins counter-clockwise in the northern hemisphere.
What is a cyclone?
300
Hot, dry air masses form mostly in summer over dry areas of the Southwest and northern Mexico. They can bring hot, dry weather to the southern Great Plains.
What is a Continental Tropical air mass?
300
An air mass that forms over land, so it is dry.
What is a continental air mass?
400
Air masses that form that have low air pressure.
What is a tropical air mass?
400
When cold air masses and warm air masses meet, but don't move each other.
What is a stationary front?
400
Cyclone is the Greek word for what?
Wheel
400
A larger, more powerful wind funnel that is not a cyclone.
What is a tornado
400
High speed winds that are 10 km over the surface of the Earth.
What is a jet stream?
500
Name the 4 main types of air masses
What are continental, maritime, polar, and tropical air masses
500
Name all 4 types of fronts.
Warm, Cold, Occluded, and Stationary fronts.
500
What causes a front that forms a cyclone to be distorted?
Surface features or strong winds.
500
When a front created by air masses colliding becomes distorted.
How does a cyclone form?
500
A part of the Atmosphere that all weather forms in.