Why is the weather so hot before a typhoon?

Before every typhoon comes, the weather will be very hot. This is because:

1. Hot weather will cause the air to rise, causing low pressure on the ground. Because the air pressure in the two places is different, high pressure It will press towards low pressure, forming a horizontal pressure gradient force, which is wind.

2. At the same time, there is less air near the ground in the low-pressure area, and the saturation of the air is reduced. Once saturated, water cannot evaporate, so water cannot evaporate and absorb heat.

The combination of the above factors results in very hot weather before the typhoon approaches.

Meteorological definition

The biggest difference between typhoons and hurricanes is their birthplace and active area. Typhoons mainly refer to tropical cyclones that are generated and active in the northwest Pacific and South China Sea, while hurricanes refer to tropical cyclones that are generated and active in the central and eastern Pacific and North Atlantic.

From the perspective of level classification, typhoons with winds above Category 12 are divided into three levels, while hurricanes have more levels and higher upper limits. Category 1 hurricanes are equivalent to typhoons or strong typhoons, Category 2 hurricanes are equivalent to strong typhoons, Category 3 hurricanes are equivalent to strong typhoons or super typhoons, and Category 4 and 5 hurricanes are equivalent to super typhoons.