Air Masses
What is an Air Mass?
a large body of air with generally uniform temperature and humidity
How does a front form?
The convergence of two or more air masses
How does a cloud form?
an accumulation of water vapor in the atmosphere where the water isn't heavy enough to pass through the air mass
What is the name of the dry side of a mountain if its other side is moist and has a lot of precipitation?
Rain Shadow
Air masses generally take on characteristics of what around them?
Land or Water
Describe how a cold front forms
A cold air mass converges on a warm air mass and violently causes it to rise.
Which cloud is categorized by fat fluffy clouds that change shapes?
Cumulus
What layer of the atmosphere contains weather?
Troposphere
What do Air masses responsible for in a region?
Weather
What type of weather is generally along a cold front?
Rain and Thunderstorms
Describe a Cumulonimbus cloud
A massive, towering cloud that are dark at the base. Bring thunderstorms
What is the study of predicting weather called?
Meteorology
Which air mass is categorized by forming over water and being humid?
Maritime Air mass
What is the name of a front where neither air masses is moving to replace the other?
Stationary Front
Which cloud is a direct sign of a change in weather?
Cirrus
78% of our Atmosphere is made of this element/gas
Nitrogen
Describe what categorizes a Continental Polar air mass
the air mass will be over land and be cold and dry
If an air mass with 30o C converges on an air mass with 20o C what type of front is this?
Warm Front
What type of day are we having if there are Stratus clouds in the sky?
Muggy or Overcast
What are the names of the trace elements that make up less than 1% each of our atmosphere?
argon, carbon dioxide, and water vapor