front
Fronts and
Air Masses
Look at the weather conditions outside.
What type of air mass is over Long Island?
What type of front is it causing?
Low pressure/high pressure?
What facts did you use to answer these questions? (Ex: I looked outside and noticed….)
Today’s Weather Map
A Body of air that has the same temperature, humidity, and pressure is known as a(n)
Air mass
What are the characteristics of a high pressure system?
Clear, cool, dry
What are the characteristics of a low pressure system?
Warm, wet, cloudy
A place where two different bodies of air collide is called a ______
front
What type of weather will a cold front bring?
Heavy precipitation for a short time
What type of weather will a warm front bring?
Light precipitation for a long time
Which air mass has the lowest pressure?
A. mP
B. mT
C. cT
D. cP
Clue- Write characteristics of each mass next to it.
Which air mass has the highest pressure?
A. mP
B. mT
C. cT
D. cP
Clue- Write characteristics of each mass next to it.
The weather characteristics of an air mass result primarily from its
________
Geographic origin
Compare an air mass from the Gulf of Mexico with and air mass from Canada
Cold/dry air rushing in and pushing warm air up explains a ___________ front
Cold
Weather along most fronts is usually cloudy with precipitation because the warm air along most fronts is usually __________
Rising and cooling, causing water vapor to cool, condense and form clouds.
Label each front
Cold front
Warm front
Stationary front
Occluded front
What are the characteristics of an anticyclone
High Pressure
Brings cool and dry conditions
Rotates clockwise
What are the characteristics of a cyclone
Brings warm, cloudy, and humid weather
Low Pressure
Travels counter-clockwise
Label the High and Lower
Pressure:
LOW
Compare the following two air masses:
HIGH mT mP warm cool
Why would one maritime air mass be more moist than another?
It stays over the ocean longer.
Don’t forget to study for the test using the review sheet and your notes!
