The description of high temperature heat wave is correct.

High temperature heat wave, also known as high temperature heat wave, is a meteorological term, which usually refers to the high temperature weather above 35℃ that lasts for many days (more than 3 days). Due to the frequent occurrence of high temperature and heat waves in recent years, the disasters caused by high temperature are becoming more and more serious. To this end, China's meteorological departments have specially formulated high-temperature warning signals to defend against high-temperature weather.

WMO (World Meteorological Organization) suggests that the standard of high-temperature heat wave is: the maximum daily temperature is higher than 32℃ and lasts for more than 3 days. According to the Royal Dutch Meteorological Institute, the daily maximum temperature is higher than 25℃ and lasts for more than 5 days, of which the maximum temperature is higher than 30℃ for at least 3 days.

The meteorological departments of the United States, Canada, Israel and other countries issued high-temperature warning according to the thermal index (also known as apparent temperature) that comprehensively considered the influence of temperature and relative humidity. For example, the standard for issuing high-temperature warning in the United States is to issue a high-temperature warning when the daytime thermal index exceeds 40.5℃ for two consecutive days or the predicted thermal index exceeds 46.5℃ at any time.

Danger:

High temperature and heat wave make the human body unable to adapt to the environment and exceed the tolerance limit of the human body, thus leading to the occurrence or aggravation of diseases and even death. At the same time, high temperature and heat wave will also affect the growth and development of plants and reduce crop yield. The process of high temperature and heat wave will also aggravate the occurrence and development of drought, and the water and electricity consumption will rise sharply, which will have a great impact on people's life and production.

In addition, high-temperature heat waves often make people fidgety and even lose their minds, which easily leads to public disorder, accidents, casualties, poisoning, fires and other events, which are indirect effects of high-temperature heat waves.

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