Show:
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
The descending air in an anticyclone generally causes ______ weather.
What is dry, clear weather?
300
This hot, dry air mass forms mostly in summer over dry areas of the Southwest.
What is continental tropical?
300
Lines on a weather map joining places with the same air pressure
What are isobars?
300
A swirling low pressure air mass is called a _________.
What is a cyclone?
300
Warm air mass is caught between two cooler air masses.
What is an occluded front?
300
This air mass can bring a Nor'easter.
What is a Maritime polar air mass?
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
Winds spiral clockwise, out from the center of an ______, moving toward areas of lower pressure.
What is an anticyclone?
400
__________ __________ tend to move quickly, they can cause abrupt weather changes, including thunderstorms.
What are cold fronts?
400
You likely to find this air mass in Washington state.
What is maritime polar?
500
The four major types of air masses influence the weather in North America.
What are: maritime tropical, continental tropical, maritime polar, and continental polar.
500
Polar air masses form north of _____ north latitude and south of _____ south latitude.
What is 50°?
500
If you notice air pressure dropping, what kind of weather would you forecast.
What is Stormy weather?
500
If a stationary front remains stalled over an area, it may bring many days of ____________ and ____________.
What are clouds and precipitation?
500
The word cyclone, comes from a Greek word meaning ______.
What is wheel?