Air Masses 1
Air Masses 2
Air Masses 3
Fronts 1
Wild
100
Scientists classify air masses according to ____________________ and ____________________.
What is humidity and temperature?
100
A huge body of air that has similar temperature, humidity, and air pressure at any given height is called _________.
What is an air mass?
100
The area where two air masses meet.
What is a front?
100
A cold air mass overtakes a warm air mass.
What is cold front?
100
On a weather map, you will see areas marked with an L, which stand for
What is Low?
200
This air mass brings cool, humid weather to the West Coast of the United States.
What is maritime polar?
200
Polar air masses have ________ air pressure.
What is high?
200
In the continental United States, major wind belts generally push air masses from ________________________ to ________________________.
What is west to east?
200
Cold and warm air masses meet, but neither one can move the other.
What is a stationary front?
200

Describe a warm front symbol. 

Red line with semicircles

300
This hot, dry air mass forms mostly in summer over dry areas of the Southwest.
What is continental tropical?
300
Describe a continental polar air mass.

Dry and cold

300

What would happen if the earth did not rotate?

Winds would move in a straight line.

300
Warm air mass is caught between two cooler air masses.
What is an occluded front?
300

What are low level clouds made of?

Water vapor

400
The four major types of air masses influence the weather in North America.
What are: Maritime tropical, maritime polar, continental tropical and continental polar air masses?
400
Band of high-speed winds above Earth’s surface are called.
What is the jet stream?
400

What type of extreme weather forms over WARM water?

Hurricane

400
__________ __________ tend to move quickly, they can cause abrupt weather changes, including thunderstorms.
What are cold fronts?
400

What happens in the center of a low pressure system

Warm air rises

500

Describe a maritime tropical air mass.

moist/wet and warm

500

What type of global winds are weak and irregular?

Polar Easterlies

500

What kind of weather do you get in a high pressure system?

What is clear/sunny skies?

500
If a stationary front remains stalled over an area, it may bring many days of ____________ and ____________.
What are clouds and precipitation?
500

What are the different types of global winds?

Polar easterlies, prevailing westerlies, and trade winds

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