What does G mean in the weather?

(2) High temperature, low pressure and sunny days are controlled by heated air masses.

(3) Thunderstorm weather, located behind the cold front, is a precipitation area controlled by the cold front.

This topic studies weather systems.

The wind direction at (1)CD should be drawn according to the distribution of isobars: the horizontal pressure gradient force points from high pressure to low pressure, and the northern hemisphere term shifts to the right;

(2)F is controlled by the heated air mass, so the temperature is higher, the air pressure is lower, and the weather is fine;

(3)G is located behind the cold front, which is a rainy area;