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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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lines on a weather map joining places that have the same temperature
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Isotherms
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thermometer
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lines on a weather map joining places on the map that have the same air pressure
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Isobar
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iso means equal
bar means pressure |
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a huge body of air that has similar temperature, humidity, and air pressure
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air mass
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warm, air masses - low air pressure
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tropical
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tropics
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cold, air masses - high air pressure
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polar
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polar bear
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the 4 types of air masses found in the US
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maritime tropical, continental tropical, maritime poar, and continental polar
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air masses that form over oceans
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maritime
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air mases that form over land - dry air
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continental
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warm, humid air mass. hot humid weather
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maritime tropical
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cool, humid air mass.
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maritime polar
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hot, dry air mass. form only in summer over dry areas of the SW and northern Mexico.
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continental tropical
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clear, cold, dry air . form over central and northern Canada and Alaska
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continental polar
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two air masses with different temperatures and densities collide / the area where the air masses meet and do not mix
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fronts
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when cold air moves undernearth warm air forcing warm to rise
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cold front
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when warm air moves over cold air. warm and humid. snow in the winter
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warm front
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warm and cool air meet - standoff
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stationary fronts
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warm air mass caught between two cooler air masses. the warm air mass is cut off.
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occluded fronts
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4 type of fronts
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cold front, warm front, stationary front, occluded front
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a swirling center of low air pressure. as warm air at the center of this rises, the air pressure decreases.
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cyclone
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high-pressure centers of dry air. also called 'highs' - H on a map
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anticyclone
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