Violent typhoons can occur at speeds of up to 194.4km/h, causing the uprooting of street trees and the destruction of houses.

A typhoon with a wind speed of 15m/s or more is called a large typhoon when the radius is 500-800km, and a super typhoon when the radius is 800km or more.

Typhoons that reach the warning level can lead to high tides, heavy rain, floods and windstorms, resulting in floods, water and power outages, paralysis of urban traffic, damage to buildings, personal injuries and other major accidents.

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