The situation before, during and after the typhoon crossing the border can be divided into two types: whether it is facing the eye of the typhoon. Pay attention to air pressure, wind speed and wind di

The situation before, during and after the typhoon crossing the border can be divided into two types: whether it is facing the eye of the typhoon. Pay attention to air pressure, wind speed and wind direction. Facing the typhoon eye:

Before the typhoon crosses the border, it is of course a normal weather phenomenon.

When the typhoon crosses the border, there is strong wind first, then there is heavy rain, and there is a storm surge at the seaside.

When the eye of the typhoon reaches the area, it will suddenly calm down.

The typhoon continues, and it will rain again, followed by strong winds.

The weather returned to normal after the typhoon crossed the border.

No, in this case:

Normal weather phenomena before crossing the border.

When crossing the border, there is strong wind first, then heavy rain, and then strong wind.

After crossing the border, return to normal weather conditions.

Of course, as far as air pressure is concerned, typhoons belong to cyclones, and cyclones are also low-pressure systems. Midday is low pressure, that is, depression.

The one that passes through the eye of the typhoon has a rapid descending and ascending process in the middle of the depression.

However, the eye of the typhoon is only concave.