Weather Data
Vocabulary
Water cycle
Air Masses
Reading A Weather Map
100
On average, a snowfall of 20 centimeters would equal a rainfall of
What is 2 centimeters?
100
A drought is a long period of
What is less rainfall than normal?
100
Rain or snow usually is associated with _______ air pressure
What is decreasing or falling?
100
When warm air meets and moves over cold air, this is what type of front?
What is Warm front?
100
Cold, dry air affecting the northern United States in winter often comes from
What is continental polar air masses?
200
meteorologists us ______ to recreate and predict weather patterns
What is a computer?
200
Very high feathery clouds are called
What is cirrus clouds
200
What is the name of the process by which water vapor enters the atmosphere during the water cycle?
What is evaporation?
200
What happens when a cold air mass overtakes a warm air mass in low pressure
What is a possible storm?
200
Small lines at the end of the shaft that represents wind direction on a weather map indicate
What is Wind Speed?
300
The collecting of weather data in the last 40 years has been improved mostly by
What is balloons and satellites
300
When a negative charge builds up in the clouds it's released to the ground in the form of
What is Lighting?
300
The most dangerous aspect of a snowstorm is often the
What is High Winds?
300
When a warm air mass and a cold air mass meet and neither can move the other, the result is a(n)
What is stationary front?
300
On newspaper weather maps, colors are often used to indicate
What is temperature?
400
Meteorologists will never be able to predict the weather perfectly because of
What is the butterfly effect?
400
Relative humidity can be measured with a(an)
What is psychrometer?
400
Two conditions are required for cloud formation: cooling of the air and
What is the presence of particles in the air?
400
The boundary where unlike air masses meet but do not easily mix is called a(n)
What is a front?
400
On a newspaper weather map a line with a triangles running across it represents a
What is cold front?
500
A hurricane’s storm surge is caused by a combination of high winds and
What is low pressure?
500
Weather associated with an anticyclone is generally
What is dry and clear?
500
How does lake-effect snow form
What is Cold, dry air blows over large lakes and then over land?
500
What are the air mass conditions for a tornado?
What is a cold mass stuck on top of a warm air mass?
500
An isobar, shows on a map as a
What is a lined area with a number showing and air mass with equal press?
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