#文章首发挑战赛#
The New Year's Day holiday has just passed, how is the weather in your city?
A cold wave is about to sweep across the mainland tomorrow on the 2nd, and this cold winter that has not been seen in 60 years will bring rare challenges to many places in the south. It is expected that at 20 o'clock on the evening of the 2nd, the zero degree line will cross the mainland Huanghuai, Jianghuai, Jiangnan and other places.
Among them, northern Sichuan, southern Shaanxi, northern Henan, southern Anhui, southern Jiangsu, northern Zhejiang, northern Shanghai and other places will usher in cooling, and the minimum temperature will drop to about 0 °C. The sudden onset of this cooling range marks a rare cold wave in the south.
At the same time, the rain on the 2nd was mainly concentrated in the southern part of the mainland, bringing rain to many places in the south for many days. Heavy to heavy rain is expected in the southwest of Jiangxi Province, the central part of Hunan Province, and the central part of Guizhou.
Among them, the rainfall in central Guizhou may even reach more than 50 mm. Such heavy rainfall conditions may trigger a series of meteorological disasters, including floods and landslides, which will cause inconvenience to the public's travel and daily life.
With the arrival of this cold wave, people are reminded to pay attention to keeping warm, especially in areas where the cooling is more obvious, and avoid prolonged exposure to cold environments. In addition, pay attention to weather warning information and take corresponding measures in time to ensure the safety of people and property.
On this upcoming 2nd, the mainland will usher in a rare heavy rainstorm, accompanied by a strong cold wave with a local drop of more than 8°C. The occurrence of such abnormal weather is inseparable from the complex movements and interactions of meteorological systems.
A cold wave is a weather phenomenon in which an extremely cold air mass moves rapidly southward and affects a wide range of weather phenomena driven by atmospheric circulation. The arrival of this cold wave is also related to the recent activity of the Arctic vortex and the continuous southward movement of cold air.
And for the formation of heavy rainstorms, it is mainly caused by the convergence of warm and moist air with cold air. During this weather process, warm and humid air currents flow from the south to the north, meeting the cold air brought by the cold wave, forming a wide range of precipitation.
Especially in Guizhou, Hunan and other places, the interaction of topography and airflow has increased the intensity of precipitation, bringing heavy to heavy rain to these areas, and may even be accompanied by thunderstorms and localized heavy rain.
In the face of this extreme weather, we need to take a series of precautions. First of all, it is necessary to pay attention to weather warning information, obtain the latest meteorological information in time, and avoid going out when the rain and cooling are more obvious.
Secondly, it is necessary to keep the room ventilated and take adequate measures to keep warm to avoid colds and other diseases. For possible meteorological disasters such as floods and landslides, it is also necessary to make preparations in advance to ensure the safety of individuals and families.
In addition, we can better understand the laws of weather changes through some knowledge of solar terms and agricultural proverbs. For example, when Erjiu enters, it is sunny and warm, and although there is a saying in the agricultural proverb that "Erjiu is warm and dry, and graves are everywhere", there is no clear scientific evidence to support this statement. Therefore, when we look at weather signs, we still need to be rational and rely more on the authoritative information of meteorological professional institutions.
For the weather conditions of heavy rain and local temperature drop of more than 8°C on the 2nd tomorrow, we need to pay more comprehensive attention to real-time weather warnings, and improve our sensitivity and response to weather changes by learning Xi weather knowledge and agricultural proverbs. When the cold wave hits, I hope that everyone will make all kinds of protective preparations to ensure the safety of themselves and their families.