He learns about different air masses, their movements, and how they interact to cause weather changes. The training includes understanding high and low pressure systems, cold and warm fronts ...

For one thing, water molecules have less mass than other gas molecules ... which helps to predict weather patterns. High pressure often represents stable air, while low pressure can signify ...

There are usually steep changes in pressure which cause high winds. Depressions often feature fronts where different air masses meet. Low pressure systems can be identified from a synoptic chart ...

This clash of air masses creates strong pressure differences ... the start of the severe weather season in the Southeast. As low-pressure systems track across the country, they tighten the ...

This air mass originates in the Sahara Desert. In tropical latitudes this air mass is hot to very hot, with low relative humidity, bringing stable weather. As the ITCZ moves north it carries the ...