Weather Unit Flashcards
Air pressure
the force that air puts on an area
Barometer
a tool used to measure air pressure
Barometric pressure
the pressure (force per unit area) of the atmosphere against a surface
Cirrus cloud
thin, wispy-looking clouds; commonly found at heights greater than 6 km
Climate
the average weather conditions in an area
Cloud
a collection of water droplets or ice crystals in the atmosphere
Drought
a prolonged shortage of rainfall
Dew point
the temperature at which water vapor in the air condenses into water
Cumulonimbus cloud
anvil-shaped cloud that is often involved in heavy or violent storms: Cumulonimbus clouds are also called thunderheads
Cumulus cloud
large, fluffy, white clouds, often seen in fair skies; can develop into cumulonimbus clouds
Forecast
to analyze weather data and make an educated guess about weather in the future; a prediction about what the weather will be like in the future based on weather data✏️
Front
in weather, the boundary between two masses of air with different properties
Funnel cloud
a rotating, funnel-shaped cloud: Funnel clouds do not touch the ground.✏️
Hail
small, icy balls that fall from the sky
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Humidity
the measure of how much water vapor is in the air
Hurricane
a storm with strong winds and rain that forms over tropical waters
Meteorology
the study of patterns of weather
Thunder
a loud noise that happens when lightning heats the air and causes it to expand and contract quickly✏️
Thunderstorm
a weather system that produces heavy precipitation, winds, lightning, and thunder
Tornado
a funnel-shaped cloud or column of air that rotates at high speeds and extends downward from a cloud to the ground
Tropical depression
a region of low pressure with counter-clockwise wind rotation that develops into a hurricane or tropical storm
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Typhoon
a hurricane or tropical storm originating in the Pacific Ocean
Weather
the properties of the atmosphere at a given time and location, including temperature, air movement and precipitation