Form when two different large air masses meet and usually bring changes in the weather.
What are fronts?
100
A map showing the state of the weather over a large area
What is a weather map?
100
The capital letter H stands for this on a weather map.
What is a high pressure center?
100
The instrument used to measure wind speed.
What is an anemometer?
200
An air mass that is dry and forms over land.
What is a continental air mass?
200
A type of front made of cold, dense air. Rain, snow, thunderstorms and sometimes tornadoes are caused by this front. Usually, the precipitation does not last very long.
What is a cold front?
200
Marked on a weather map as a red line with half circles on it.
What is a warm front?
200
A capital letter L stands for this on a weather map.
What is a low pressure center?
200
This type of breeze forms when the air over water at night is warmer than the air over land.
What is a Land Breeze
300
An air mass that forms over the polar regions and is cold.
What is a polar air mass?
300
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?
300
Marked on weather maps as a blue line with triangles on it.
What is a cold front?
300
mP
What is maritime polar?
300
This type of breeze forms due to low pressure over land and high pressure over water. (usually in the daytime)
What is a Sea Breeze
400
An air mass that forms over the tropics and is warm.
What is a tropical air mass?
400
The type of front forms when a large mass of warm air takes over the cooler air mass. Usually produces rain, fog, or snow that is light but steady.
What is a warm front?
400
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?
400
cT
What is continental tropical?
400
These winds blow for short distances.
What are local winds
500
The two characteristics of air masses.
What are temperature and moisture?
500
This happens where fronts come together.
What is changes in weather?
500
Lines that connect areas with the same air pressure on a map.