weather terms from chapter 3. Storms, fronts, and predicting the weather.
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| Results of a cold air mass running into a warm air mass. Brings thunderstorms in the summer and snow in the winter. | cold front
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| A difference between cyclones and anticyclones | directions of the winds
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| A huge body of air that has similar temp., humidity, and air pressure throughout. | air mass
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| Four major types of air masses that influence the weather in North America | maritime polar, maritime tropical, continental polar, continental tropical
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| People who study weather and try to predict it | meteorologist
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| Lines that join places that have the same air pressure | isobars
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| A warm air mass takes over a cold air mass. Brings steady, long-lasting rain or snowfall. | warm front
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| These advances in technology have made predicting the weather more reliable. | weather balloons, satellites, and computers.
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| A small change in the weather today can mean a larger change in the weather a week later, because the weather does not follow a step by step process. | the butterfly effect
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| Four types of fronts | occluded, warm, cold, and stationary
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| A dramatic climate change that occurs every 2-7 years | El Nino
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| The major cause of the heating of our atmosphere | the sun
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| Winds that spin counterclockwise and are associated with storms | cyclones
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| When two cooler air masses cut off a warm air mass from the ground | occluded front
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| When two air masses meet and don't mix | front
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| This front may bring many days of rain because neither air mass can move the other. Altocumulus clouds form for many days. | stationary
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| A swirling center of low pressure associated with storms and precipitation. | Cyclone
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| A swirling center of high pressure associated with clear weather. | Anticyclones
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| boundary where the warm and cold air masses meet. | Frontal boundaries
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| air that is less dense and rises | warm air
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| air that is more dense and sinks | cold air
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| As warm air cools, the moisture condenses to form | clouds
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| weather type that warm front most likely will produce | light rain
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| driving factors for all weather here on Earth, such as storms and local weather systems | sun heats the air at different rates, the atmosphere must try to equalize temperature and pressure.
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| area of low air pressure often associated with fronts | trough
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| primary source of energy for weather phenomena | solar radiation
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| Winds that move from west to east. Effect the weather here in the United States. | Prevailing Westerlies
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