Falling moisture in the form of rain, sleet, snow, hail, or drizzle.
What is precipitation?
100
The act of water vapor changing from a gas to a liquid.
What is condensation?
100
Clouds that form on the surface of the ground.
What is fog?
100
A violently rotating, tall, narrow column of wind that makes contact with the ground.
What is a tornado?
100
When a tornado touches down on water.
What is a water spout?
200
The weather conditions particular to a certain area, such as wind, precipitation, and temperature.
What is climate?
200
To change water into a vapor by the warming of the sun.
What is evaporation?
200
A high altitude cloud made of ice crystals that appear thin, white, and feathery.
What are cirrus clouds?
200
A storm that starts over the ocean with very heavy rain and winds over 75 mph.
What is a hurricane?
200
Permanently frozen subsoil found around polar regions.
What is permafrost?
300
A ribbon of high-speed wind in the upper atmosphere caused by the difference in temperature between the tropical and polar latitudes.
What is the jet stream?
300
The body of gasses surrounding the earth.
What is atmosphere?
300
A whirling cloud that does not touch the ground.
What is a funnel cloud?
300
A wind system that causes periods of wet and dry weather in India and southern Asia.
What is a monsoon?
300
A special type of radar used to track severe weather by detecting wind speed and direction.
What is Doppler radar?
400
A gas in the earth's upper atmosphere that is responsible for screening most of the sun's harmful ultraviolet radiation.
What is ozone?
400
The weather conditions particular to a certain area, such as wind, precipitation, and temperature.
What is climate?
400
Low altitude gray clouds with a flat base.
What are stratus clouds?
400
A strong ground wind caused by a strong downdraft, which forms inside a severe thunderstorm.
What is a microburst?
400
The temperature of windless air that would have the same cooling effect on exposed skin as a combination of wind speed and air temperature.
What is wind chill factor?
500
The amount of water vapor in the air compared to the amount of water vapor the air can contain at the point of saturation.
What is relative humidity?
500
The movement of atmospheric air caused by the rotating earth. Air spirals counterclockwise around a low center in the Northern Hemisphere and clockwise in the Southern Hemisphere.
What is the Coriolis Force?
500
All strong tornadoes form in a low overhanging cloud that lies just below the thunderstorm.
What is a wall cloud?
500
A slow moving thunderstorm that drops more rain than can be absorbed into the ground.
What is one cause of a flash flood?
500
A weather instrument used to measure the pressure of the atmosphere.