Air Masses
Fronts
Map Symbols/Definitions
Jet Steam/Convection Currents
Reading a Weather Map
100
Define air mass
a large body of air with similar characteristics (temp, humidity, etc)
100

Name the 4 types of fronts.

What are warm, cold, stationary, and occluded.

100

What is an isobar?

On weather maps and connect areas of equal pressure.

100
What direction do winds move in the jet stream?

From west to east

100

What does a blue H on a weather map represent? What type of weather will it bring?

A high pressure area. It means cool, dry, calm weather

200
This is formed when 2 air masses of different temperatures meet.
What is a front
200

This type of front is formed when a fast moving cold air mass meets a slow moving warm air mass.

Cold Front

200

What is an isotherm?

On weather maps and connect areas of equal temperature.

200

Where are the strongest winds located in the jet stream?

In the center

200
What does this symbol mean? *
snow
300
This is the proper name for a warm air mass formed over land.
What is continental tropical.
300
This type of front is formed when a warm air mass slowly pushes a cold air mass out of the way.
What is a warm front.
300

How is a stationary front represented on a weather map?

Alternating blue triangles and red circles.

300

What is a sea breeze?

Happens when the land heats up faster than the water which means the air over the land is warmer and less dense than the air over the water. 

Since the air is less dense it rises, then the colder more dense air from the water replaces it and causes an onshore breeze. 

300
Draw a weather station symbol for 75% cloud cover.
Circle 3/4 filled in.
400
This is the proper name for a cold air mass formed over the ocean.
What is maritime polar.
400
This type of front is formed when 2 cool air masses trap a warm air mass above the earth's surface.
What is an occluded front.
400

How is an occluded front represented on a weather map?

Purple line with half circles on it.

400

What is a land breeze?

Happens at night when the water heats up faster than the land, which means the air over the water is warmer and less dense than the air over the land. 

When this is in place the warmer less dense air over the water rises and the colder less dense air replaces it.

400

What is the wind direction and speed of the weather station model Mrs. Brown has drawn on the board?

Northeast, wind speed it 35 knots

500
Explain why warm air masses rise above cold air masses.
Warm air particles are farther apart and therefore warm air is less dense and floats above more dense cold air.
500
This is the type of front that will bring rain for the longest period of time.
What is a stationary front.
500
How do you know which way a front is moving on a weather map?

The shapes on the front line point in the direction of movement.

500

How do convection currents in the ocean and atmosphere affect weather conditions around the world?

Water/air is heated at the equator, it then rises to the poles where it is cooled and them drops back down to the equator. This movement creates convection currents that affect our wind, ocean currents and weather around the world.

500

What does a red L on a weather map represent? What type of weather will it bring?

Low pressure system. Warm, moist, cloudy, unstable weather.