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Air Mass
Clouds
Precipitation
Water Vapor
Weather Terms
100
a large body of air with relatively uniform properties
What is an air mass?
100
white, billowy clouds that resemble piles of cotton puffs
What is a cumulus cloud?
100
layered balls of ice
What are hailstones?
100
the process of a liquid becoming a gas
What is evaporation?
100
the study of weather and of the atmospheric conditions that produce weather
What is meteorology?
200
brings very cold and dry weather
What is an arctic air mass?
200
a type of fog found along the slopes of mountains
What is an upslope fog?
200
ice crystals in clouds that grow large enough to fall to the ground
What is a snowflake?
200
water vapor in the air that touches the cooler ground and turns to a liquid
What is dew?
200
the year-round atmospheric conditions typical of a certain place
What is climate?
300
the three factors that affect the density of an air mass
What are temperature, humidity, and pressure?
300
an almond-shaped cloud
What is a lenticular cloud?
300
drops of liquid water that have a diameter of 0.5 millimeter or greater and fall to Earth
What is rain?
300
air that is completely full of water vapor
What is saturated air?
300
the three major factors that determine the earth's weather
What are heat energy, uneven distribution of heat energy, and water vapor?
400
brings warm, moist weather
What is a maritime tropical air mass?
400
the most frequent type of cloud
What is a stratocumulus cloud?
400
airborne water vapor cannot turn in to liquid without this small particle
What is a condensation nucleus?
400
the ratio comparing the actual humidity to the humidity of saturated air under the same conditions
What is relative humidity?
400
a phenomenon that occurs when an area receives an abnormally low amount of precipitation over a long period
What is a drought?
500
two air masses pushing against each other but not advancing form this
What is a stationary front?
500
the level of the nimbostratus cloud
What is mid-level?
500
snowflakes with white, feathery branches forming a leaf- or star-shaped pattern
What are dendrites?
500
cooling air saturates at this temperature
What is the dew point?
500
a phenomenon that occurs when an air mass remains stationary over a region for a long time
What is air-mass weather?