What low temperature warning will suspend classes?

The yellow warning of low temperature will suspend classes. In some places, when the meteorological department issues a yellow warning signal of low temperature (the daily minimum temperature will drop below minus 3℃), schools will be closed. In extreme weather, the school will decide whether to suspend classes according to the weather forecast and the early warning signal from the meteorological department. In Henan, when bad weather such as snowfall, strong wind and low temperature is expected, the school will decide whether to suspend classes according to the emergency plan of freezing rain and snow disaster of Zhengzhou Education Bureau.