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Types of Fronts Stationary front, Study Guides, Projects, Research of Earth, Atmospheric, and Planetary Sciences

is a transition zone from warm air to cold air. A cold front is defined as the transition zone where a cold air mass is replacing a warmer air.

Typology: Study Guides, Projects, Research

2021/2022

Uploaded on 09/12/2022

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Types of Fronts
Stationary front
A front that is not moving.
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Types of Fronts

Stationary front

A front that is not moving.

Types of Fronts

Cold front

is a leading edge of colder air that is

replacing warmer air.

Types of Fronts

Occluded front:

When a cold front catches up to a warm front.

Types of Fronts

Dry Line

Separates a moist air mass from a dry air mass.

Cold fronts generally move from northwest to

southeast.

The air behind a cold front is noticeably colder

and drier than the air ahead of it.

When a cold front passes through,

temperatures can drop more than 15 degrees

within the first hour.

The station east of the front reported a temperature of 55 degrees Fahrenheit while a short distance behind the front, the temperature decreased to 38 degrees. An abrupt temperature change over a short distance is a good indicator that a front is located somewhere in between.

Warm fronts generally move from southwest to northeast.

The air behind a warm front is warmer and more

moist than the air ahead of it.

When a warm front passes through, the air becomes noticeably warmer and more humid than it was before.

Diagram of Warm and Cold Fronts

Another view of a Cold Front

Looking at details of a Warm Front

C. Stationary Front a front that is not moving. When a warm or cold front stops moving, it becomes a stationary front. Once this boundary resumes its forward motion, it once again becomes a warm front or cold front.

A stationary front is represented by

alternating blue and red lines with blue triangles pointing towards the warmer air and red semicircles pointing towards the colder air.

As the storm intensifies, the cold front rotates around the storm and catches the warm front. This forms an occluded front, which is the boundary that separates the new cold air mass (to the west) from the older cool air mass already in place north of the warm front. Symbolically, an occluded front is represented by a solid line with alternating triangles and circles pointing the direction the front is moving.

Formation of an Occluded Front