When will it snow in Hefei?

On November 25, 2020, Hefei ushered in the first snow of winter this year.

When water vapor encounters cold in the high altitude, it will turn into small water droplets or ice crystals. When the small water droplets or ice crystals grow to a certain extent through collision, the air cannot hold them back and they will fall downwards to form precipitation.

If the low air temperature is higher than 0℃, the falling water droplets are called rain; if the low air temperature is lower than 0℃, the small ice crystals will not melt during the falling process, which will form snow. Rain and snow are different phases of water vapor. Rain or snow depends on the temperature at low altitude. Extended information

During this cold wave, the dividing line between rain and snow was located on the Hefei-Lu'an line. The temperature drop predicted by the Municipal Meteorological Observatory was not as large as the actual temperature drop (the difference was about 1℃), resulting in no forecast for this snowfall. come out. The transition between rain and snow has always been a difficulty in forecasting. In the future, we will continue to strengthen the analysis and research of rain and snow forecasts and do our best to make every forecast well.

In addition, the Hefei Meteorological Observatory released the latest weather conditions at 11:00 on November 25, 2019:

Cloudy with sleet and snow.

The northerly wind is level 4 and the gust is level 7. Minimum temperature: 2℃.

Tomorrow during the day: Cloudy with light rain or sleet.

Easterly wind level 3. Maximum temperature: 11℃.

Anhui Portal - Just now! The editor of Hefei Meteorological Observatory gave an answer as to why this snowfall was not accurately forecast