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Chapter 17
Weather Fronts and Storms
| Question | Answer |
|---|---|
| Air mass | a large volume of air that has nearly the same temperature and humidity at different locations at the same altitude |
| Blizzard | A blinding snowstorm with winds of at least 56 km/h, usually with temperatures -7C |
| Front | The boundary between air masses |
| High-pressure system | A generally calm and clear weather system that occurs when air sinks down in a high-pressure center and spreads out toward areas of lower pressure as it nears the ground |
| Hurricane | A tropical low-pressure system with sustained winds of 20 km/h or more |
| Isobar | A line on a weather map connecting plates that have the same air pressure |
| Low-pressure system | A large and often stormy weather system that occurs when air moves around and into a low-pressure center, then moves up to higher altitudes |
| Meteorologist | A scientists who studies weather |
| Storm surge | A rapid rise in water level in a coastal area that occurs when a hurricane pushes a huge mass of ocean water, often leading to flooding and widespread destruction |
| Thunderstorm | A storm with lightning and thunder |
| Tornado | A violently rotating column of air stretching from a cloud to the ground |
| Tropical storm | A low-pressure system that starts in the tropics with winds of at least 65 km/h but less then 120 km/h |
Created by:
avaught
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