Why does it snow in Shenzhen?

Lead: Weather News Today (24th) morning, in Fuyong Tang Wei Community, Bao 'an, I heard panting outside the window. Many people cheered that it snowed in Shenzhen! When I went downstairs, I saw ice particles falling from the sky and knocking on the roof and leaves. The shopkeeper nearby said that he had been in Shenzhen for 20 years and had never seen such ice particles fall in Shenzhen. This is a rare thing in 20 years. Meteorologically, this is not snow, but summer, commonly known as snow seeds, snow rice and snow beans. At 65438+1on the afternoon of October 23rd 1 1, the Shenzhen Meteorological Observatory announced that due to the low temperature and strong wind, and the fact that the top of the mountain has been shrouded in rain and fog in recent days, the thatch, branches and even the automatic weather station on the top of the mountain were covered with a layer of ice, but it was not snow, but a kind of "freezing".

What exactly is "freezing"? It is understood that this is a meteorological disaster that often occurs in winter in the mountainous areas of southern China. Municipal meteorologists pointed out that this kind of freezing is not mysterious, but an atmospheric physical phenomenon, which is also called "freezing" in some places. The explanation of meteorology is that under the continuous low temperature and rainy weather, supercooled water droplets (raindrops and fog droplets) in the air collide with the surface of objects with near-surface temperature below 0℃ and freeze rapidly, and gradually form opaque or translucent layered ice shells covering the surface of objects, including rime, rime and mixed rime.