Air masses and fronts

What is an air mass?

• A large body of air with the same humidity and temperature

• A large body of air with the same temperature

• A large body of air with the same heat index

• A cold body of air with the same wind speed.

What is a cold front?

• The leading edge of a cold air mass

• The leading edge of a warm air mass

• A linepointing towards the cold air mass

• A line showing that the mass of air is not moving.

What is a warm front?

• An outline of a warm air mass

• Leading edge of a cold air mass

• Leading edge of a warm air mass

• A continental tropical region.

What describes a stationary front?

• Two air masses pushing against each other which neither advancing

• An air mass that does not move

• A low pressure system that spins over one area

• The jet stream.

cP air mass is:

• found over land at high latitudes

• found over water at high latitudes

• found over water and low latitudes

• found over land at low latitudes

cT is found at

• low latitudes over land

• high latitudes over land

• low latitudes over water

• high latitudes over water

What is are characteristics of a mT air mass.

• wet and warm

• wet and cold

• dry and warm

• dry and cold

What does mP stand for.

• maritime polar

• maritime tropical

• Marine poles

• Marine pizza

Low pressure systems...

• rising air, brings storms.

• sinking air, brings storms

• sinking air, brings good weather

• rising air, brings good weather

High pressure is...

• sinking, cool, dry air.

• rising dry air.

• A system bringing fair weather conditions.

• A system bringing lousy weather.