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Meteorology

We mostly work with the

two top symbols, and note

that on weather charts in
black and white, all symbols

are black, so it's the shape

you need to focus on here.

3.8.3 Warm Sector

The area between the cold and warm fronts is called the warm sector.

The figure shows a classic

low-pressure system: cold
front with showers, warm

sector with good weather,

and warm front with rain.

Above is the low-pressure

system at higher altitudes.

Below is a cross-section of

the low-pressure system

from the Earth's surface to about 10 km up.

See an animation of the development of the low-pressure system here.

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3.8.4 Front Clouds

Next side you see the clouds associated with a traditional front system. The

diagram should be read from right to left.

Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 306