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