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Weather Map & Inst.

Weather Map & Instruments

TermDefinition
Warm front Warm air mass rides over a cole air mass, may produce long periods of precipitation and later, warmer temperatures
Cold front Cold air mass slides under a warm air mass, may produce thunderstorms, heavy precipitation, sometimes tornadoes, then cooler temperatures
Stationary front Neither the cold air mass nor the warm air mass moves along the frontal boundary, may produce long periods of precipitation
Occluded front When a Cold air mass pushes a warm air mass with cool air behind it, the warm air rushes above the cooler air masses, and long periods of precipitation may occur
High pressure system Signals more fair weather. Winds circle clockwise around the high pressure system.
Low pressure system Counterclockwise winds often result in rainy and/or stormy weather
Tornado Low pressure system . A rapidly whirling funnel shaped cloud extending down from a storm cloud, could causes great damage. Tornadoes form on land.
Hurricane A low pressure tropical storm that forms over warm ocean water
Isobars Lines on a weather map showing different air pressure zones
Station model Symbols that provide information that can be used to predict weather patterns
Radar Images that can be used to detect cloud cover, rainfall, storm location, as well as potential for severe weather
Rain gauge Used to measure precipitation in inches or centimeters
Barometer Used to measure air pressure in inches of mercury or millibars
Anemometer Used to measure wind speed
Sling psychrometer A two thermometer tool used to measure relative humidity using a relative humidity table or chart
Wind vane An instrument used to show wind direction
Created by: Tdudley2014
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