condition of the atmosphere at a certain time and place
What is weather?
100
Air Mass
What is a large body of air where temperature and moisture content are similar
100
Thunderstorms
What are small, intense weather systems that bring heavy rain, strong winds, lightning and thunder?
100
Weather balloons
What are instruments that can measure weather conditions as high as 30 km above Earth's surface.
100
Cumulus Clouds
What are puffy white clouds with flat bottoms?
200
Water cycle
What is the continuous movement of water from sources on the Earth's surface into the air, onto and over the land, into the ground and back to the surface.
200
Source region
What is location where an air mass forms?
200
Cumulonimbus clouds
What are clouds that form from an unstable atmosphere?
200
Instrument used to measure wind direction
What is a windsock?
200
Clouds that form in layers
What are stratus clouds?
300
Amount of water vapor in the air
What is humidity?
300
The air mass that brings severe winter weather from Canada
What is cP?
300
Tornado
What is a destructive, rotating, column of air with high winds and a funnel shaped cloud that touches the ground.
300
Barometer
What is an instrument used to measure air pressure?
300
Cirrus clouds
What are thin, feathery white clouds found at a high altitude?
400
Relative humidity
What is actual water vapor content/saturation water vapor content * 100
Amount of water vapor in the air compared to the maximum amount of water vapor that the air can hold at a certain temperature.
400
Two air masses that meet
What is a front?
400
Hurricane
What is a rotating tropical weather system that has wind speeds of at least 120 mph
400
Instrument used to measure wind speed
What is an anemometer?
400
The difference between sleet and hail
What is freezing rain and ice formed from raindrops being carried in an updraft repeatedly.
500
Two factors which affect relative humidity.
What the amount of water vapor and temperature?
500
Warm air mass caught between two colder air masses
What is an occluded front?
500
Wall of water that builds up over the ocean due to strong winds and low atmospheric pressure.
What is a storm surge?
500
Weather satellites
What are weather instruments that orbit the Earth and provide images of weather systems.
500
Cirrus and alto
What are the prefixes for clouds forming at a high and low altitude?