Forecasting the Weather

This term means that an air mass is DRY and originates ABOVE LAND

• Continental

• Marine

• Arctic

• Polar

• Tropical

This term means that an air mass is MOIST and originates ABOVE OCEANS

• Continental

• Marine

• Arctic

• Polar

• Tropical

This term means that an air mass is VERY COLD and originates FROM QUITE CLOSE TO THE NORTH POLE

• Continental

• Marine

• Arctic

• Polar

• Tropical

This term means that an air mass is COLD and originates FROM SOMEWHERE LIKE CENTRAL CANADA

• Continental

• Marine

• Arctic

• Polar

• Tropical

This term means that an air mass is WARM and originates FROM NEAR THE EQUATOR

• Continental

• Marine

• Arctic

• Polar

• Tropical

Air masses that originate above land are...

• DRY

• MOIST

Air masses that originate above oceans are...

• DRY

• MOIST

High pressure systems are usually associated with

• fair, nice weather without precipitation

• stormy weather, lots of precipitation

Low pressure systems are usually associated with

• fair, nice weather without precipitation

• stormy weather, lots of precipitation

Warm substances are...

• less dense and rise.

• denser and sink.