Convergence
: When two air masses of the same temperature collide and neither is willing to go back down, the only way to go is up. As the name implies, the two winds converge and rise together in an updraft that often leads to cloud formation.
When two air masses of different temperatures or moisture content collide One result of this air movement may be?
Convergence
: When two air masses of the same temperature collide and neither is willing to go back down, the only way to go is up. As the name implies, the two winds converge and rise together in an updraft that often leads to cloud formation.
When 2 air masses of different temperatures collide What is a possible result?
When two different air masses come into contact,
they don’t mix
. They push against each other along a line called a front. … As it rises, the warm air cools rapidly. This configuration, called a cold front, gives rise to cumulonimbus clouds, often associated with heavy precipitation and storms.
What happens when two air masses have very different temperatures and moisture levels?
When winds move air masses, they carry their weather conditions (heat or cold, dry or moist) from the source region to a new region. When the air mass reaches a new region, it might clash with another air mass that has a different temperature and humidity. This can create
a severe storm
.
What is the boundary that occurs when two air masses of different temperatures and density collide but do not mix is called?
When two air masses meet together, the boundary between the two is called
a weather front
. At a front, the two air masses have different densities, based on temperature, and do not easily mix. One air mass is lifted above the other, creating a low pressure zone.
What causes air masses to move around?
Winds and air currents
cause air masses to move. Moving air masses cause changes in the weather. A front forms at the boundary between two air masses. Types of fronts include cold, warm, occluded, and stationary fronts.
What is formed between two air masses of different densities?
Front
: The boundary between two air masses of different density. When it does not move, it’s called “stationary”; “warm” when warmer air replaces cooler air; “cold” when cooler air replaces warmer air.
What happens when air masses of different temperatures meet?
When air masses with different temperatures meet, they don’t mix together. Instead
a narrow boundary forms between them which is called a front
. A front is a narrow boundary between two air masses. Usually when fronts occur one air mass is moving into an area while another is moving out.
What happens when two low pressure systems collide?
This time of year, the jet stream shifts pulling cold arctic air down towards the south, and high and low pressure systems will collide. This collision course creates
increased wind and fronts
and as the pressure systems overlap, clouds will begin to form and potentially rain will fall.
What happens when low and high pressure meet?
Winds blow towards the low pressure, and
the air rises in the atmosphere
where they meet. As the air rises, the water vapor within it condenses forming clouds and often precipitation too. … Wind blows away from high pressure.
What are the 4 types of air masses?
Air masses are commonly classified according to four basic source regions with respect to latitude. These are
Polar (cold), Arctic (very cold), Equatorial (warm and very moist), and Tropical (warm)
.
What are two conditions you need for air mass formation?
What conditions are necessary for an air mass to form? It
must stay over a land or sea surface long enough to acquire the temp/humidity/stability characteristics of the surface below
. They are associated with source regions, they must be extensive, physically uniform, and have stationary air.
What are the 5 types of air masses?
Five air masses affect the United States during the course of a typical year:
continental polar, continental arctic, continental tropical, maritime polar, and maritime tropical
.
What do all air masses have in common?
Air masses have
fairly uniform temperature and moisture content in horizontal direction
(but not uniform in vertical). Air masses are characterized by their temperature and humidity properties. The properties of air masses are determined by the the underlying surface properties where they originate.
What is the relationship of air masses to a front?
An air mass is a body of air with a relatively constant temperature and moisture content over a significant altitude. Air masses typically cover hundreds, thousands, or millions of square kilometers. A front is the boundary at which two
air masses of different temperature and moisture content meet
.
How does the density of warm and cold air masses affect their behavior?
The warm air rises because the cold air pushes the warm air upward
. Also, the colder air is denser and sinks lower. What happens when two air masses collide? They will mix along their boundary, but they will keep their distinct characteristics.
