Weather Fronts

Weather fronts

​Weather Symbols

Fronts

Front: boundaries of air masses Differ by temperature, density, and humidity

• The weather we experience depends on which front is dominant 
• Fronts bring precipitation

Cold Front

A cold front forms when cold air moves under warm air. Since the warm air is less dense the cold air pushes the warm air up. Cold fronts can and usually do produce thunderstorms. They are usually followed by colder and drier air.

Multiple Choice

During a cold front you are likely to experience...

• Thunderstorm

• Light drizzle

• Sunny Weather

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What kind of weather happens during a cold front?

• Light rain or light snow
• Heavy rain or heavy snow
• Clear skies, temp. warms
• Clear skies, temp. cools

Multiple Choice

What kind of weather happens after a cold front moves out?

• Light rain or light snow
• Heavy rain or heavy snow
• Clear skies, temp. warms
• Clear skies, temp. cools

Warm Front

A Warm Front forms when warm air moves over colder denser air and gradually replaces the colder air. Warm Fronts generally bring rain and are followed by clear and warm weather.

Multiple Choice

A warm front...

• replaces warm air with cool air

• replaces cool air with warm air

Multiple Choice

What kind of weather happens during a warm front?

• Light rain or light snow
• Heavy rain or heavy snow
• Clear skies, temp. warms
• Clear skies, temp. cools

Multiple Choice

What kind of weather happens after a warm front moves out?

• Light rain or light snow
• Heavy rain or heavy snow
• Clear skies, temp. warms
• Clear skies, temp. cools

Stationary Front

A Stationary Front occurs when a cold air mass and a warm air mass meets but neither have the force to push the warm air mass up over the cold air mass. The two air masses remain seperate creating a Stationary Front. A Stationary Front usually creates several days of rainy weather.

Multiple Choice

Which symbol represents a stationary front?

Multiple Choice

Stationary Fronts

• Warm air mass is stronger

• Cold Air Mass is stronger

• Neither is stronger, so it doesn't move

Occluded Front

^{An Occluded Front forms when a warm air mass is caught between two colder air masses. The cold air mass moves under the warm air mass and pushes it up. The coldest air mass moves forward until it meets a cold air mass that is warmer and less dense. The coldest of these two air masses moves under and pushes up the warm air mass. Sometimes the two cold air masses meet together and mix. This Front bring lots of rain and snow.}

Multiple Choice

In an Occluded Front,

• a warm air mass gets caught between two cold air masses

• a cold air mass gets caught between two warm air masses

• there is only cold air

Multiple Choice

In an occluded front

• warm air is pushed higher by cold air

• cold air is pushed higher by warm air

• the air clashes and doesn't move

Multiple Choice

What type of front does this symbol represent?

• Cold Front

• Occluded Front

• Stationary Front

• Warm Front

Multiple Choice

What is the name this front?

• warm front

• cold front

• stationary front

• occluded front

Multiple Choice

Which front does this show?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

Which one shows a warm front?

Multiple Choice

Which front has the densest air?

• Occluded

• Stationary

• Cold

• Warm

Multiple Select

Which front causes precipitation? (Check all that apply)

• Cold

• Warm

• Stationary

• Occluded

Multiple Choice

What type of front is pictured here?

• Cold Front

• Occluded Front

• Stationary Front

• Warm Front