What are the 4 air fronts?

There are four different types of weather fronts: cold fronts, warm fronts, stationary fronts, and occluded fronts.

• Cold Front. A side view of a cold front (A, top) and how it is represented on a weather map (B, bottom).
• Warm Front.
• Stationary Front.
• Occluded Front.

What is front in air movement?

A front is a weather system that is the boundary separating two different types of air. One type of air is usually denser than the other, with different temperatures and different levels of humidity. Cold fronts often come with thunderstorms or other types of extreme weather. They usually move from west to east.

What direction do fronts move?

Cold fronts typically move from northwest to southeast. A cold front can bring cold temperatures, torrential rains and high wind speeds. A stationary front happens when a cold front and a warm front meet up, but neither moves out of the way.

What type of air movement causes a cold front?

Cold fronts form when a cooler air mass moves into an area of warmer air in the wake of a developing extratropical cyclone. The warmer air interacts with the cooler air mass along the boundary, and usually produces precipitation. Cold fronts often follow a warm front or squall line.

What type of front is still and not moving?

Stationary Front: a front that is not moving. When a warm or cold front stops moving, it becomes a stationary front.

What fronts mean?

1. that part or side that is forward, prominent, or most often seen or used. 2. a position or place directly before or ahead: a fountain stood at the front of the building.

What do weather front symbols mean?

When a warm front passes through, the weather becomes noticeably warmer and more humid than it was before. The weather map symbol for a warm front is a red curved line with red semi-circles. The semi-circles point in the direction the warm air is moving.

Which front lasts the longest?

Cold fronts tend to move the farthest while maintaining their intensity. Cold fronts tend to be associated with cirrus well ahead of the front, strong thunderstorms along and ahead of the front, and a broad area of clouds immediately behind the front (although fast moving fronts may be mostly clear behind the front).

How fast do weather fronts move?

However, depending on the length of the cold front, portions of the front may move toward the east, while other portions move south. Some sections of the front may move faster than others. Active cold fronts (slow moving) average 15 knots. Inactive cold fronts (fast moving) have an average speed of 25 knots.

Is cold air high or low pressure?

Since cold air is more dense than warm air… cold air masses are associated with lower pressure at a given height in upper levels of the atmosphere (think of the atmosphere being compressed). So troughs in the upper level wind pattern are associated with cold air masses, and ridges with warm air masses.

What type of weather does a occluded front bring?

The temperature drops as the warm air mass is occluded, or “cut off,” from the ground and pushed upward. Such fronts can bring strong winds and heavy precipitation. Occluded fronts usually form around mature low pressure areas.

What does a warm front look like?

Symbolically, a warm front is represented by a solid line with semicircles pointing towards the colder air and in the direction of movement. On colored weather maps, a warm front is drawn with a solid red line. There is typically a noticeable temperature change from one side of the warm front to the other.

How are air masses and weather fronts related?

Meteorologists study air masses and weather fronts to help make predictions about the weather. Air Masses Play a Big Role in Weather 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.

What are the different types of weather fronts?

There are various types of fronts, including cold, warm, occluded and stationary fronts. A warm front is an area of warm air displacing cold air. A cold front is an area of cold air displacing warm air. An occluded front is where a cold front catches up with a warm front.

What happens when a cold front approaches with cold air?

When a cold front approaches, rain is likely as the cold air mass pushes the warm air mass up. As the warm air mass rises it cools down and condenses to form clouds which will likely form rain. How do meteorologists label different kinds of weather fronts?

What causes air to move around in the air?

ANSWER Wind is moving air. Air moves around due to heating and cooling. Cool air sinks, and warmer air rises. Once the warm air rises, it cools down and sinks again. This creates air movement, which causes wind. What different kinds of wind have you experienced? ANSWER