fronts and air masses. look at the weather conditions outside. what type of air mass is over long...
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![Page 1: 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](https://reader036.vdocuments.us/reader036/viewer/2022062500/5697bf8c1a28abf838c8ba12/html5/thumbnails/1.jpg)
Fronts and Air Masses
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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….)
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Today’s Weather Map
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A Body of air that has the same temperature, humidity, and pressure is known as a(n)
Air mass
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What are the characteristics of a high pressure system?
Clear, cool, dry
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What are the characteristics of a low pressure system?
Warm, wet, cloudy
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A place where two different bodies of air collide is called a ______
front
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What type of weather will a cold front bring?
Heavy precipitation for a short time
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What type of weather will a warm front bring?
Light precipitation for a long time
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Which air mass has the lowest pressure?
A. mPB. mTC. cTD. cP
Clue- Write characteristics of each mass next to it.
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Which air mass has the highest pressure?
A. mPB. mTC. cTD. cP
Clue- Write characteristics of each mass next to it.
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The weather characteristics of an air mass result primarily from its ________
Geographic origin
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Compare an air mass from the Gulf of Mexico with and air mass from Canada
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Cold/dry air rushing in and pushing warm air up explains a ___________ front
Cold
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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.
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Label each front
Stationary front
Warm front
Cold front
Occluded front
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What are the characteristics of an anticyclone High Pressure Brings cool and dry conditions Rotates clockwise
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What are the characteristics of a cyclone Brings warm, cloudy, and humid
weather Low Pressure Travels counter-clockwise
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Label the High and Lower Pressure: Compare the following two air masses:
mT mPLOW HIGH
warm cool
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Why would one maritime air mass be more moist than another?
It stays over the ocean longer.
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Don’t forget to study for the test using the review sheet and your notes!