The temperature and density of the air masses.
the air masses moves when hot air and cold air gets together
Generally, the air temperature of a descending air mass will increase. This is due to the incredible mount of pressure placed on it. Generally, the air mass will also experience an increase in humidity.
A tropical air mass typically causes hot and humid weather. This air mass forms over warm tropical regions and carries high levels of heat and moisture, leading to sultry and sticky conditions when it moves into an area.
Cold Front-When a fast moving cold air mass runs into a slowly moving warm air mass Warm Front-A fast moving warm air mass collides with a slow moving cold air mass Stationary Front-When a cold and a warm air mass meet, but neither one has enough force to move the other Occluded Front-When a warm air was is caught between two cold air masses
The hot and dry air mass is most likely to move in the direction where lower pressure systems exist. This typically means that it will move towards areas with cooler temperatures or where moist air masses are located.
A stationary front occurs when a warm air mass and a cold air mass meet but remain in place, leading to prolonged periods of rain or other forms of precipitation.
If Earth didn't move, airmasses would float in straight lines. However, since Earth does in fact move, it causes air masses to arc.
Stationary front
Generally, the air temperature of a descending air mass will increase. This is due to the incredible mount of pressure placed on it. Generally, the air mass will also experience an increase in humidity.
a tornado
The land breeze causes the air to move counterclockwise
An arctic air mass typically causes snow, as it brings cold temperatures and moisture to an area, resulting in the development of snowfall.
Extremely cold air.
convection
Anti-cyclone
Anti-cyclone
No single air mass "causes" tornadoes. This is Tornadoes form within thunderstorms. Thunderstorms form best when there is plentiful warm, moist air. So, a arm, moist air mass is usually present. Significant tornado activity, however, usually results from the thunderstorms that form near the boundaries between air masses. Usually where a warm, moist air mass meets a cooler or drier air mass.
A stationary front is formed when a cold air mass and a warm air mass meet but neither can move the other. This results in a boundary where the two air masses remain in place, creating a mix of weather conditions along the front.