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Weather Notecards

things about weather

QuestionAnswer
Air Mass Huge body of air that has the same temperature humitity, and air pressure at any given hight
4 major air masses in North America Mairtime Tropical, Maritime Polar, Continental Tropical, and Continental Polar
Cold, dense air has... Higher Air Pressure
Warm, dense air has... Lower Air Pressure
Tropical Air Masses Warm air masses that form in the tropics and have low air pressure
Polar Air Masses Cold air masses that form north of the 50 degree north latitude line and south of the 50 degree south latitude line and gave high air pressure
Maritime Air Masses Air masses form over the ocean; can be humid
Continental Air Masses Air masses that form over land; usually drier
Maritime Tropical Warm, Humid air masses: hot humid weather, showers and thunderstorms in the summer, heavy rain or snow in the winter.
Maritime Polar Cool, Humid air masses: fog, rain, cool temperatures.
Continental Tropical Hot, dry air masses that are common in the southwest
Continental Tropical + Maritime Tropical= Storms
Prevailing Westerlies and Jet Streams Commonly move air masses in the United States
Front The boundary where air masses meet
Cold Front Fasst moving cold air overtakes a warm air mass causing abrupt weather changes
Warm Front A warm air mass overtakes a slow moving cold air mass, causing rainy or cloudy weather for several days, then warm, humid weather
Stationary Front Cold and warm air masses meet, but niether can move the other; this causes many days of clouds and precipitation
Occluded cut off
Occluded Front Warm air mass is caught between two cold air masses; causes cooler air, clouds, rain, or snow
Cyclone A swirling center of low pressure; the Greek word meaning "wheel"
Anticyclones High pressure centers swirling outward
Storm Violent disturbance in the atmosphere
Lightning Spark, or electrical discharge that jumps between clouds, or clouds and ground
Tornando Rapidly whirling, funnel shaped cloud
Tornado Alley Caused by weather patterns in the Great Plains
Created by: xocarolynxo
Popular Earth Science sets

 

 



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