How high is the hot weather?

When the temperature is above 35℃, it can be called "high temperature weather". If the maximum temperature exceeds 35℃ for several consecutive days, it can be called "high temperature heat wave" weather. Generally speaking, there are usually two situations of high temperature. One is dry heat with high temperature and low humidity. The other is the sultry high temperature with high temperature and high humidity, which is called "sauna day".

The formation of high temperatures is often directly caused by specific weather systems, the most typical and common of which is the subtropical high pressure, known as the "high temperature messenger". In addition to natural factors, the formation of hot weather is also affected by human activities.

Causes of formation:

1. Triggered by weather systems: The formation of high temperatures is often directly caused by specific weather systems. The most typical and common one is the "high temperature messenger" The subtropical high pressure. In addition to the subtropical high, weather systems such as continental warm high pressure, tropical cyclones, thermal low pressure, and weak cold fronts can also produce high-temperature heat waves.

2. Global warming provides climate background: Under the influence of global warming, extreme high temperature events are becoming more and more frequent.

3. The urban heat island effect "adds fuel to the fire": The urban heat island effect refers to the phenomenon that the temperature in the city center is higher than that in the suburbs.

As urbanization accelerates, the urban heat island effect becomes more obvious, which undoubtedly contributes to high temperature weather