Rain turns to heavy snow approaching!DecemberThe day is coming to the cold weather!Cold air is moving south, does this mean that we are going to have a cold winter?What impact will this have on our lives and health?Let's take a look!
1. Cold air is coming, and the temperature in many places across the country has plummeted
According to the forecast of the China Meteorological Administration1, starting from December 3, a new round of strong cold air will begin to affect most parts of China from the northern part of Xinjiang, and the temperature will drop by 4-8 in various places, with a local drop of more than 10;Northwest China, the southern part of Northeast China, North China and most areas south of it have 4-6 northerly winds, with gusts up to 7-9.
This round of cold air will bring adverse effects such as strong winds and cooling, rain and snow weather to our country, among them, northern Xinjiang, central and western Inner Mongolia, western Gansu and other places will have heavy to heavy snowfall, and there will be extremely heavy snowstorms locally, with snow depths of more than 20 centimeters, causing serious troubles to transportation, agriculture and animal husbandry.
This is the strongest cold air process since the beginning of winter this year, and it is also one of the strongest cold air processes that have occurred in December in recent years.
Second, the cold air has a wide range of influence, and the south will also usher in the lowest temperature since the beginning of winter
This round of cold air will not only affect the northern region, but will also bring significant cooling to the southern region. It is expected that from December 4 to 6, the minimum temperature 0 line will be pressed south to the northern part of Guangxi and the central and northern parts of Guangdong, which is the southernmost since the beginning of winter this year. The minimum temperature in Kunming, Fuzhou, Guangzhou and other places may refresh the new low in the second half of this year, and the public needs to do a good job of cold protection and warmth.
This means that the southern region will also have the coldest day since the beginning of winter, and the feeling of wet cold will be even more uncomfortable.
3. Cold air brings not only cold, but also rain, snow and haze.
In addition to cooling, this round of cold air will also bring unfavorable weather such as rain, snow and haze to our country. It is expected that from December 3 to 6, rain and snow will occur in most areas of central and southern North China and its south, among which snowflakes may fall in some areas such as Henan, Hubei, Anhui and Jiangsu, and the local public should pay attention to prevent the adverse impact of slippery roads on traffic travel.
In addition, after the cold air, the atmospheric diffusion conditions in North China, Huanghuai and other places will deteriorate, and haze weather will reappear, posing a threat to people's respiratory health.
This shows that the cold air brings not only cold, but also multiple troubles such as rain, snow and haze, and we must take measures to protect ourselves and our families.
4. Why is the cold air so strong?How do we deal with it?
In the face of this round of strong cold air, many people may wonder why the cold air is so strongDoes this have anything to do with global warming?How do we deal with this weather?
According to expert analysis, the intensity and duration of this round of cold air are relatively long, mainly due to the influence of the Siberian high pressure. The Siberian high is the strongest high pressure system in the northern hemisphere in winter, and its strength and location determine the temperature and precipitation in winter in China. When the Siberian high pressure is strong and southerly, it brings strong cold air to our country.
The change of the Siberian high pressure has a certain relationship with global warming. Global warming has led to a decrease in sea ice in the Arctic, affecting the stability of the Arctic vortex, making it easier for cold air to move south, bringing cold spells to the mid-latitudes.
This tells us that the intensity and frequency of cold air are closely related to global warming, and we need to strengthen environmental protection, reduce greenhouse gas emissions, and jointly address the challenge of climate change.
In the face of such weather, we must do the following:
Pay attention to the timely increase or decrease of clothing to prevent colds and frostbite, especially the elderly and children should pay attention to keep warm.
Reduce outdoor activities, avoid driving in rainy and snowy weather, and pay attention to traffic safety.
Pay attention to the forecast and early warning of haze weather, wear a mask, avoid staying in the haze area for a long time, try to choose clean energy, and reduce pollutant emissions.
Pay attention to the latest information from the meteorological department and adjust your travel plans in time to avoid being affected by adverse weather.