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Air moss - a body of air that has the same temperature and humidity
^ throughout
1
i
/ Humidity - the amount of water vapor in the air
/
- a boundary between two unlike air masses
Warm front - the leading edge of a moving mass of warm air
Cold front - the leading edge of a moving mass of cold air
•_-»
Stationary front - when a cold and a warm air mass meet, but neither
moves
Occluded front - when two cold air masses squeeze together and push
warm air up
High-pressure zone - an area of the atmosphere that has high
pressure, generally having clear skies
Low-pressure zone - an area of the atmosphere that has low
.
pressure, generally having cloudy skies
Hurricane - a large rotating windstorm with a calm central eye and
winds greater than 74 mph
Tornado - a violent windstorm characterized by a twisting, funnelshaped cloud
Blizzard - a strong winter storm that brings high winds, very cold
temperatures, and heavy snow
Cumulus cloud - mid-level, puffy clouds
Cirrus cloud - high-level, wispy clouds
.
Weather Vocabulary
Atmosphere - the layer of air that surrounds the Earth
,
Meteorologist - a person who studies the weather
Forecast - a prediction of the weather conditions for a given area and
a given time period
Barometer - a device used to measure air pressure
Rain gauge - a device used to measure the precipitation in a given area
/Weather vane - a device used to determine wind direction
.
.
,
.
' Anemometer - a device used to measure wind speed
/
Hygrometer - a device used to measure humidity
xPrecipitation - any liquid or solid form of water that falls from the
atmosphere, for example, rain, snow, sleet, or hail
.
Evaporation - the process of changing from a liquid state to a gas
Condensation - the process of changing from a gas state to a liquid
state
Runoff -water that runs over the land to waterways, not being
absorbed into the soil or evaporated into the air
""—
Climate - the average weather for an area over a long period of time
) Weather - atmospheric conditions for a specific time and place
Air pressure - the force of air pressing on a surface