CCTV News: According to China Weather Network, starting today (March 1), the cold wave will affect my country from north to south, and the north will take the lead in cooling, and the highest temperature in North China, Huanghuai and other places will return to single digits. The south is affected by the cold wave, and the warmth level will reach its recent peak today and tomorrow. The highest temperature in most areas will exceed 25℃, as if early summer is coming. Starting from the 3rd, the temperature in the south will drop "cliff-like" and the decline in some areas can reach more than 20℃. The arrival of the cold wave will also bring about large-scale rain and snow weather, and tomorrow and the day after tomorrow will be the strongest period of this round of precipitation.

The cold wave affects my country today. The temperature dropped sharply after a brief warm weekend in the Southern Weekend

The cold air has weakened since this week, the warm high-pressure ridge gradually moved eastward, and the temperature in most parts of the central and eastern regions continues to rise. Yesterday, the temperature in most parts of the north reached the high point of this heating process, and the highest temperature in provincial capitals, capitals and municipalities such as Changchun, Beijing, Hohhot, Lanzhou, Jinan, and Zhengzhou hit a new high this year.

But starting today, the cold wave will start to affect my country. It is expected that from March 1 to 4, the temperature in the central and eastern regions will drop by 6 to 10℃ from north to south. Among them, the cooling of southern North China and most areas in the south will drop by 12 to 16℃, and some areas can reach more than 18℃.

The temperature in the north will be the first to turn down from today. Today, Inner Mongolia, Heilongjiang, western Jilin, western Liaoning and other places will experience cooling. Tomorrow the center of cooling will shift to Shaanxi, Shanxi, Hebei, Beijing, Tianjin, northern Henan, Shandong and other places. The daily temperature drop in some areas will reach about 15℃. After the cooling down, the highest temperature in North China, Huanghuai and other places returned to single digits.

In the south, which has not been affected by the cold wave, the highest temperature will continue to rise today and tomorrow. The highest temperature in most areas will exceed 25°C, and some areas will even reach about 30°C. For example, the highest temperature in Nanchang will rise to 29℃ tomorrow, 28℃ in Nanjing, and 27℃ in Changsha, which are all rare warm heat during the same period.

From the 3rd, as the cold wave moves south, the drastic cooling will unfold in most parts of the south. On the 3rd, the Jianghuai and Jiangnan areas will become the core areas for cooling down, and the decline in southern Anhui and northern Hunan can reach more than 20℃. On the 4th, the daily cooling rate in Jiangxi, Fujian, Zhejiang and other places will exceed 10℃.

Because the temperature in the south is significantly higher during the heating process, the difference in temperature and temperature is particularly obvious after the cold wave comes, as if you are experiencing a cross-seasonal experience from summer to winter. For example, the highest temperature in Hefei on the 2nd was 27℃, but it fell to 4℃ the next day; the highest temperature in Changsha on the 2nd was 27℃, but it dropped to 6℃ on the 3rd. The public should pay attention to temperature changes and add clothes in time to avoid catching a cold.

Large-scale rain and snow will hit the south today, and the first strong convective weather this year will be seen in the south

With the arrival of the cold wave, the warm and humid air flow will further strengthen northward. Starting today, large-scale precipitation will spread rapidly in our country. It is expected that from March 1 to 4, there will be light to moderate rain to sleet or moderate snow in the eastern part of the northwest region, the western and southern part of North China, the Huanghuai and Jianghan, and there will be blizzards in some areas of Hetao, Inner Mongolia, northern Shaanxi, Huanghuai and other places, and light to moderate rain in most areas of the south. Among them, heavy rain will be heavy in some areas of the Huanghuai, Jianghan, Jianghuai, western and northern Jiangnan, and northern South China, with local heavy rain accompanied by strong convective weather.

Today, there will be light to moderate snow or sleet in some areas such as southeastern Heilongjiang, eastern Jilin, Yili River Valley, Xinjiang, Tianshan Mountains, central and eastern Qinghai-Tibet Plateau, and northeastern Northwest Region, and heavy snow in some areas. There will be light to moderate rain in some areas of southeastern Tibet, eastern Northwest, central and southern North China, most of the Huanghuai River, Jianghan, and other areas, among which there will be heavy rain in some areas of east and west Shandong, central and eastern Henan.

Tomorrow and the day after tomorrow will be the strongest period of this round of large-scale precipitation. Local single-day precipitation in Henan, Shandong and other places may exceed the monthly precipitation in March. At the same time, the precipitation phase is complex. From tomorrow night to the day after tomorrow, the eastern part of the northwest region, western and southern North China, northern and western Huanghuai, and other places will undergo rain and snow phase changes in turn. Ice particles may appear in some areas such as Shanxi, Shandong, and Henan, and frozen rain will occur in some mountainous areas.

In addition, the warm and cold air are very strong during this process, and the south will stimulate the first strong convective weather this year. Hunan, Jiangxi, Guizhou, Guangdong and other places should be wary of thunderstorms, strong winds, hail and other weather.

Specifically, tomorrow, there will be light to moderate snow or sleet in some areas of southwestern Xinjiang, eastern Qinghai-Tibet Plateau, western Inner Mongolia, eastern Northwest, western and southern North China, northern Huanghuai and western China, among which there will be heavy to moderate snow in some areas of Hetao, Inner Mongolia, eastern Gansu, northern Ningxia, northern Shaanxi, central and northern Shanxi, southern Hebei, northeastern Shandong and western Shandong, and northern Henan. There will be moderate to heavy rain in some areas of the southeastern part of the northwest region, central and southern Huanghuai, Jianghuai, most of the Jianghan area, northern Jiangnan area and other areas, and there will be heavy rain in some areas.

The day after tomorrow, there will be light to moderate snow or sleet in western Inner Mongolia, the Ili River Valley and southwestern Xinjiang, northern Shaanxi, western North China, most of the Huanghuai, northern Jianghuai, central and northern Jianghan, among which there will be heavy snow or blizzards in some areas such as southwestern Xinjiang, eastern and southern Shandong, eastern and southern Henan, northern Anhui, northern Jiangsu, and northern Hubei. There will be moderate to heavy rain in some areas of eastern and southern Jiangnan, northern South China, and other areas, and heavy rain in some areas.

China Weather Network reminds that this precipitation process is conducive to the increase of wheat fields and agricultural water storage, but there is a phase transition between rain and snow in the eastern part of the northwest region, western and southern part of North China, Huanghuai, Jianghan, Jianghuai and other places, and the local precipitation is large, which can easily lead to freezing and slippery road surfaces. Pay attention to traffic safety when traveling. At the same time, some areas in the south are also accompanied by strong convective weather, so you need to pay attention to prevention.