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 type of vertical storm cloud that most often forms along a cold front.
What is cumulonimbus?
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
Layer of the atmosphere where all weather & clouds occur.
What is the troposphere?
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
Pressure system that rotates clockwise in the Northern Hemisphere.
What is High?
400
An air mass that forms over the tropics and is warm.
What is a tropical air mass?
400
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 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
Pressure system that rotates counter-clockwise in the Northern Hemisphere.
What is low?
500
The two characteristics of air masses.
What are temperature and moisture?
500
The type of clouds that typically develop in a warm front.
What is nimbostratus?
500
Lines that connect areas with the same air pressure on a map.
What are isobars?
500
cP
What is continental polar?
500
The layer of the atmosphere where weather satellites are located.