When Air Masses Meet

Describes different types of air masses, shows how they move across the United States, and indicates the type of weather usually associated with different types of fronts. Differentiates between high and low pressure areas. Defines a front and explains the formation of different types of fronts. Describes warm and cold air masses and explains the terms cyclone and anti-cyclone.
Complete catalog record
Describes different types of air masses, shows how they move across the United States, and indicates the type of weather usually associated with different types of fronts. Differentiates between high and low pressure areas. Defines a front and explains the formation of different types of fronts. Describes warm and cold air masses and explains the terms cyclone and anti-cyclone., NOTE: Two (or more) records have been merged together to create this data.

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