Unit 6.2: Meteorology

A simple diagram that summarizes 10 pieces of weather information.

• Station Model

• Cold Front

• Pressure System

• Air Mass

On a station model, this shows the change in air pressure over past 3 hours.

• Wind Speed

• Cloud Cover

• Visibility

• Barometric Trend

A large body of air with the same temperature and humidity of its source region (geographic origin).

• Air Mass

• Air Pressure

• Barometric Trend

• Fronts

A warm and moist air mass that can be found in places like the Gulf of Mexico.

• mT (maritime tropical)

• mP (maritime polar)

• cP (continental polar)

• cT (continental tropical)

A warm and dry air mass that can be found in places such as the Southwest US and Mexico.

• mT (maritime tropical)

• mP (maritime polar)

• cT (continental tropical)

• cP (continental polar)

A cold and dry air mass that is found in places such as Central Canada.

• mT (maritime tropical)

• mP (maritime polar)

• cT (continental tropical)

• cP (continental polar)

A cold and wet air mass that is found in places such as the North Atlantic Ocean.

• mT (maritime tropical)

• mP (maritime polar)

• cT (continental tropical)

• cP (continental polar)

The leading edge of an oncoming air mass (a boundary between two air masses).

• Air Front

• Air Mass

• Air Pressure

• Wind Direction

A cold air mass moves into an area, wedges under a warmer air mass forcing the warm air up.

• Cold Front

• Warn Front

• Occluded Front

• Stationary Front

A warm air mass that is moving into an area glides over a cooler air mass.

• Cold Front

• Warn Front

• Stationary Front

• Occluded Front