Air masses and fronts

What can happen when air reaches its dew point?

• 1. Condensation occurs.

• 1. The humidity decreases.

• 1. Saturation occurs

• Clouds form.

What kind of weather will nimbostratus clouds likely bring?

• partly cloudy

• overcast

• rain

• torrential rain

• lightning

What kind of weather will cumulonimbus clouds likely bring?

• partly cloudy

• overcast

• rain

• torrential rain

• lightning and thunder

Which of the following describes an air mass with the symbol cT?

• cold and wet

• cold and dry

• warm and wet

• warm and dry

The air mass that forms over North America in winter would have the symbol

• cT

• cP

• mT

• cA

• mP

A maritime tropical air mass forms over

• the Pacific Ocean

• the Gulf of Mexico

• Death Valley, USA

• northern Canada

The air over the Caribbean Sea is likely to be

• warm all year

• warm in wet season, cool in dry season

• dry all year

• cool in wet season, warm in dry season

When an occluded front occurs

• warm air is trapped between cold air masses

• the warm front overtakes the cold front

• the cold front overtakes the warm front

• cold air becomes trapped between two warm air masses

On a weather map an occluded front is shown as a

• purple line with alternating semicircles and triangles both pointing in the direction of motion

• purple line with alternating semicircles and triangles pointing in different directions

• line of red and blue semicircles and triangles both pointing in the direction of motion

• line of red and blue semicircles and triangles pointing in different directions

On a weather map a stationary front is shown as a

• purple line with alternating semicircles and triangles both pointing in the direction of motion

• purple line with alternating semicircles and triangles pointing in different directions

• line of red and blue semicircles and triangles both pointing in the direction of motion

• line of red and blue semicircles and triangles pointing in different directions