Air Masses
A body of air is called this.
What is an air mass?
A front is a _________ between two air masses.
What is a boundary?
the amount of water vapor in the air.
what is Humidity
vapor condenses around particles in the air.
What are Clouds
air mass sits over the ocean for a while, it becomes humid (wet)
What Time is maritime
This air mass forms over warm water.
What is maritime tropical air mass?
This front is represented by blue triangles on a weather map.
What is a cold front?
the percent of water vapor in the air relative to the total amount the air can hold
what is relative humidity
occur low in the troposphere. They form in layers that spread horizontally and may cover the entire sky like a thick blanket. Stratus clouds that produce precipitation are called nimbostratus.
what are stratus clouds
air mass sits over land for a while, it becomes dry
What is Continental
This air mass froms over land that is cold.
What is continental polar air mass?
This front forms when warm air slides over cold air.
What is a warm front?
measure of what the temperature feels like because of the humidity.
what is The heat index
are white and puffy. Convection currents make them grow upward and they may grow very tall. When they produce rain, they are called cumulonimbus.
What are Cumulus clouds
•Form over the tropics (low latitudes)
•Warm/Hot
What is Tropical
This air mass can bring hot, humid weather in the summer.
What is maritime tropical air mass?
This front is represented by purple triangles and circles all going the same direction.
What is an occluded front?
The temperature at which water vapor condenses
What is Dew Point
form high in the troposphere. Because it is so cold they are made of ice crystals. They are thin and wispy
What are Cirrus clouds
•Form at the polar regions of Earth (high latitudes)
Cool/Cold
what is polar
This air mass can bring heavy snow in the winter.
What is maritime polar?
This air mass can bring cold dry air.
What is continental polar air mass?
Clouds that form on the ground
What is Fog
Clouds are needed for precipitation. This may fall as liquid water, or it may fall as frozen water, such as snow.
What is
Precipitation
Pushes Air from West to East
What is the Jet Stream