What is the red warning temperature?

If the maximum temperature will rise above 40℃ within 24 hours, it will be a red warm suit warning.

The standard of high temperature red warning signal is that the maximum temperature rises above 40℃ within 24 hours. The high temperature warning signal is divided into three levels, which are represented by yellow, orange and red respectively. High temperature in red warning signal means hot weather.

High temperature red warning signal is an early warning signal made by meteorological departments through meteorological monitoring before the arrival of high temperature, reminding people to take precautions, minimizing the discomfort caused by high temperature and avoiding the occurrence of heatstroke. High temperature red warning signal is the third and highest level of high temperature warning signal.