Air Pressure
Air molecules pressed tightly together
What is high pressure air?
Air moving horizontally across Earth
What is wind?
Shows the direction wind is coming FROM
What is a wind vane?
The boundary between two air masses with different temperatures (Where one ends and the other begins)
What is a front?
The land cools faster than the sea at night and causes this to form
What is a land breeze?
Air molecules spread out
What is low pressure air?
Warm air rising
What is an updraft?
Measures amount of precipitation
What is rain gauge?
A front that brings a brief storm followed by cooler drier weather
What is cold front?
The sea heats up slower than the land during the day and causes this to form
What is a sea breeze?
High pressure brings this type of weather
What is happy (clear and dry)?
Cool air sinking
What is a downdraft?
Measures air pressure
What is barometer?
A front that brings warm moist air with slow steady precipitation that may last for days
What is a warm front?
A large region of the atmosphere that has similar properties or characteristics
What is air mass?
Low pressure brings this type of weather
What is lousy (wet)?
A pattern of rising and sinking air
What is a convection cell?
Measures wind speed
What is anemometer?
When a cold and warm front meet and neither is strong enough to move the other, the weather is often different on each side of the front
Our global wind zone in the US
What is prevailing westerlies?
The kind of weather we can expect if a high pressure system is moving out
What is lousy (wet)?
The way wind moves
What is from high pressure to low pressure?
Measures humidity
What is hygrometer?
When a cold front catches up with the warm front ahead of it, joins the cool air in front of the warm front, and traps the warm front between the two cool air masses
What is an occluded front?
This causes our winds in the Northern Hemisphere to curve to the right
What is the Coriolis Effect?