Air Masses
This creates air pressure
What is temperature?
Form when two different large air masses meet and usually bring changes in the weather.
What are fronts?
Marked on weather maps as a blue line with triangles on it.
What is a cold front?
The name given to a scientist that studies weather.
What is a meteorologist?
An air mass that is dry and forms over land.
What is a continental air mass?
A type of front made of cold, dense air. Rain, snow, thurnderstorms and sometimes tornadoes are caused by this front. Usually, the precipitation does not last very long.
What is a cold front?
Marked on a weather map as a red line with half circles on it.
What is a warm front?
This is created when warm air over land rises and cool air from the sea moves in to replace the warm air. This happens in the daytime.
What is a sea breeze?
An air mass that forms over the polar regions and is cold.
What is a polar air mass?
The front that forms when two air masses meet and neither one takes over. Often causes many cloudy days to occur in a row.
What is a stationary front?
Marked on a weather map as a blue line with blue triangles on one side and red half circles on the other side.
What is a stationary front?
This is the symbol for an air mass that forms over northern Canada.
What is cP (continental polar)
An air mass that forms over the tropics and is warm.
What is a tropical air mass?
The type of front formed when a large mass of warm air takes over the cooler air mass. Usually produce rain, fog, or snow that lis light but steady.
What is a warm front?
the stem attached to the symbol for cloud cover does this.
What is show the direction of the wind?
This is an instrument used to measure wind speed.
What is an anemometer?
An air mass that is wet and forms over water.
What is a maritime air mass?
The type of front that develops when two cool air masses merge, forcing the warm air to rise and become trapped. Usually brings wind and preciptiation.
What is an occluded front?
Marked on the weather map as a purple line with half circles and triangles on the same side.
What is an occluded front?
This is the type of air mass that forms over the Gulf of Mexico.
What is maritime tropical? (mT)