What is a warm air mass approaching a cold air mass?

What is a warm air mass approaching a cold air mass?

Basically, a weather front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.

When a warm air mass moves over a cold air mass?

A warm air mass pushes into a colder air mass (the warm front), and then another cold air mass pushes into the warm air mass (the cold front). Because cold fronts move faster, the cold front is likely to overtake the warm front. This is known as an occluded front.

What is it called when a warm air mass slides over a cold air mass?

In a warm front, a warm air mass slides over a cold air mass. In a cold front, a cold air mass slides under a warm air mass. An occluded front has three air masses: cold, warm, and cold.

What happens when a warm air mass slowly passes over a cold air mass?

Air masses are slowly pushed along by high-level winds. When an air mass moves over a new region, it shares its temperature and humidity with that region. For example, when a colder air mass moves over warmer ground, the bottom layer of air is heated. That air rises, forming clouds, rain, and sometimes thunderstorms.

What happens when a cold air mass comes into contact with a warm moist air mass?

What MOST likely happens when a cold air mass comes into contact with a warm, moist air mass? Rain or snow begins to fall. Winds blowing inland from oceans tend to have a greater moisture than winds blowing over land.

What happens when one air mass overtakes another air mass?

One air mass is lifted above the other, creating a low pressure zone. If the lifted air is moist, there will be condensation and precipitation. Winds are common at a front. The greater the temperature difference between the two air masses, the stronger the winds will be.

What causes air masses movement?

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.

Which air mass contains cold dry air?

Continental polar (cP) or continental arctic (cA) air masses are cold, dry, and stable. These air masses originate over northern Canada and Alaska as a result of radiational cooling.

What are the six types of air masses?

The Six Types. Okay, so now that you know the terms for land or water, as well as the different source regions, you have enough information to determine the six types of air masses. These are: continental arctic (cA), maritime arctic (mA), continental polar (cP), maritime polar (mP), continental tropical (cT), and maritime tropical (mT).

Which air mass is humid and warm?

Continental air masses form over land and are dry. Therefore, an air mass that develops over northern Canada is called a continental polar air mass and is cold and dry. One that forms over the Indian Ocean is called a maritime tropical air mass and is warm and humid.

What is stationary air mass?

Stationary front. A stationary front is a pair of air masses, neither of which is strong enough to replace the other.