What are the hazards of typhoons?

1, rainstorm: typhoons have sufficient water vapor conditions, so they are often accompanied by strong convective weather such as heavy rain or heavy rain. Heavy rainfall in a short period of time may lead to urban waterlogging, landslides, mudslides and other disasters.

2. Gale: The gale 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 careful to guard against them.

3. Storm surge: Storm surge means that when a typhoon moves to land, seawater will accumulate in the direction of the coast and be pushed to the coast in the form of an avalanche, which may lead to tidal overflow, breakwater of seawalls, destruction of houses and various building facilities, 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, not only the road traffic is greatly affected, but also the ships and air flights at sea.

The destructive power of typhoon is mainly caused by three factors: strong wind, heavy rain and storm surge;

1. Strong typhoon is a huge energy pool, and its wind speed is above 17m/s, even above 60m/s ... According to the measurement, when the wind reaches 12, the wind pressure per square meter on the plane perpendicular to the wind direction can reach 230kg.

2. Rainstorm is a very strong rainfall system. The floods caused by typhoons and rainstorms are the most dangerous disasters. Typhoon rainstorm is strong in intensity, high in flood frequency, wide in spread, powerful and destructive.

3. Storm surge. The so-called storm surge means that when the typhoon moves to the land, due to the typhoon's strong wind force and low air pressure, the sea water accumulates strongly in the direction of the coast, the tide level rises, and water waves come to the coast.