What is the cause of typhoon?

How typhoons are formed is as follows:

1. On the vast tropical ocean surface where the seawater temperature is higher than 26.5℃, a large amount of seawater is evaporated into the air, forming a low pressure center.

2. With the change of air pressure and the movement of the earth itself, the inflowing air also rotates, forming an air vortex rotating counterclockwise, which is a tropical cyclone.

3. The continuous high temperature makes the tropical cyclone stronger and stronger, and finally forms a typhoon.

The hazards of typhoon:

1, rainstorm

Typhoon has sufficient water vapor conditions, so it is often accompanied by strong convective weather such as heavy rain or torrential rain. Heavy rainfall in a short period of time may lead to urban waterlogging, landslides, mudslides and other disasters.

2. Strong wind

The windy weather brought by typhoon is one of the main hazards of typhoon. Falling objects from high altitude and the collapse of dangerous houses are all accidents that are easy to happen in typhoon days, so everyone needs to be cautious.

3. Storm surge

Storm surge means that when the typhoon moves to the land, the seawater will accumulate in the direction of the coast and press against the coast in the form of avalanche, which may lead to the overflow of the tide, the bursting of the seawall, the destruction of houses and various building facilities, the flooding of towns and farmland, and a large number of casualties and property losses.

4. Traffic impact

The storm brought by typhoon is a disaster for traffic, which not only greatly affects road traffic, but also affects ships and air flights at sea.