Page 314 - PPL-engelsk 2025

Meteorology

differences between the air masses. Warm occlusion typically gives mild and

stable weather, with light rain or snow. The weather resembles that of a warm

front.

3.8.8.2 Cold occlusion

Cold occlusion occurs when the

cold air behind the front is colder
than the cold air ahead of the

front.

The cold air mass coming from

the front is heavier and pushes
the warm air upwards, resulting

in faster lifting of the warm air and, therefore, more unstable weather with

heavier precipitation, storms, and turbulent weather.

The weather resembles that of a cold front.

See the animation of fronts and occlusion here.

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Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 314