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Weather Patterns

Weather and Climate: Chapter Three

TermDefinition
air mass a huge body of air that has similar temperature, pressure, and humidity throughout.
tropical a warm air mass that forms in the tropics and has low air pressure. (Think: warm)
polar a cold air mass that forms north of 50 degrees north latitude or below 50 degrees south latitude and has high air pressure. (Think: cold)
continental a dry air mass that forms over land.
maritime a humid air mass that forms over oceans.
front the area where air masses meet and do not mix.
storm a violent disturbance in the atmosphere.
tornado a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface.
hurricane a tropical storm that has winds of 119 miles per hour or greater.
meteorologist a scientist who studies the causes of weather and tries to predict it.
weather balloon a device that is sent into the atmosphere to take measurements.
satellites devices that orbit Earth and transmit information; used to help forecast weather
isobar a line on a weather map that join areas of the same air pressure.
isotherm a line on a weather map that join areas of the same air temperature.
Created by: wtr6thscience