When a mass of cold air collides with a mass of warm air what happens quizlet?
When a mass of cold air collides with a mass of warm air, what happens? The warm air rises above the cold air. You just studied 39 terms!
When a cold air mass converges with a warm air mass the warm air mass will?
Frontal wedging: When a warm air mass and a cold air mass collide, you get a front. Remember how low-pressure warm air rises and cold high-pressure air moves into its place? The same reaction happens here, except the two forces slam into each other.
What happens when a cold front meets warm air?
As a cold front moves into an area, the heavier (more dense) cool air pushes under the lighter (less dense) warm air, causing it to rise up into the troposphere. As the cold front passes, winds become gusty. There is a sudden drop in temperature, and also heavy rain, sometimes with hail, thunder, and lightning.
What is the result of a warm air mass moving over a cooler air mass?
When a warm air mass moves into an area of cooler air, the boundary between the air masses is called a warm front. The colder, denser air slides under the warmer, less-dense air. As a result, the warmer air is pushed up. As it cools, the water vapor condenses and forms clouds that bring precipitation.
What factors are used to express humidity select all that apply?
List three measures that are used to express humidity. Mixing ratio, relative humidity, and dew point temperature.
How does snow vary with temperature?
How does snow vary with temperature? Cold snow is powdery and light, while warm snow is moist.
What forms when a cold air mass meets a warm air mass?
When a cold air mass meets a warm air mass, a cold front forms. The cold air wedges under and lifts the warm air upwards. Cold fronts can move fast, push the warm air up violently, and produce thunderstorms.
What happens when air masses of different temperatures meet?
When air masses come together, warm air rises over cold air. The boundary between warm air and cold air is much steeper in a warm front than in a cold front. In a warm front, warm air pushes underneath cold air.
What causes air masses to move around?
Air masses are large bodies of air that have similar temperature and humidity. These air masses are moved around the atmosphere by prevailing winds that blow in one direction. Weather fronts cause changes in the weather such as rain, storms and wind.
What is it called when a moving warm air mass moves into a stationary cold air mass?
Warm Fronts When a warm air mass runs into a cold air mass, it creates a warm front (Figure below). The warm air mass is moving faster than the cold air mass. The warm air mass then flows up over the cold air mass. As the warm air rises, it cools. This brings about clouds and sometimes light precipitation.
What is the first sign of the approaching warm front?
The first signs of an approaching warm front are the appearance of high, thin, wispy cirrus clouds. As the front nears, the clouds will become lower in the sky and be thicker, since there will be more air at lower elevations from which to condense clouds.
What is a cold air mass?
In meteorology, an air mass is a volume of air defined by its temperature and water vapor content. Colder air masses are termed polar or arctic, while warmer air masses are deemed tropical. Continental and superior air masses are dry while maritime and monsoon air masses are moist.
How can you relate this to air masses and weather?
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.
Do cold air masses move faster?
Cold fronts move faster than warm fronts because cold air is denser, meaning there are more molecules of material in cold air than in warm air. Cold, dense air squeezes its way through the warmer, less-dense air, and lifts the warm air.