Central Meteorological Observatory： There is a wide range of rain and snow in the central and eastern regions, and the cold wave will bring severe cooling to most parts of China.
CCTV News:The Central Meteorological Observatory issued a weather bulletin.Domestically,Snowfall occurred in Jilin, Liaoning, Shandong and Xinjiang. It is estimated that in the next three days, there will be a new round of large-scale rain and snow weather in the central and eastern regions. Some areas in southern North China, Huanghuai and central and southern Northeast China are at high risk of blizzard, rain and snow freezing, and pay attention to the impact on transportation, communication facilities, agriculture and animal husbandry. There will be another cold wave weather process affecting the central and eastern parts of China from the 14th, paying attention to the impact of low temperature on energy supply, and the offshore waters also need to pay attention to the hazards of strong winds.
Globally,There is heavy snowfall in eastern Europe and western Canada, and heavy rainfall in northern Australia and northern Argentina; Australia, South Africa and other places continue to have high temperature weather.
I. Domestic weather conditions
1. Reality
（1）Significant snowfall occurred in Jilin, Liaoning and other places
From 8: 00 yesterday to 6: 00 today, small to medium snow or sleet appeared in parts of eastern Jilin, eastern Liaoning, Shandong Peninsula and northern Xinjiang, and snowstorms occurred in southeastern Jilin, eastern Liaoning, eastern Shandong Peninsula and Yili, Xinjiang.
（2）Significant cooling has occurred in Jiangnan and other places.
At 5 o’clock today, compared with 5 o’clock yesterday, the temperature dropped by 6 ~ 10℃ in southern Anhui, central and southern Jiangsu, Shanghai, central and northern Zhejiang, Jiangxi, southern Hunan, eastern Guizhou and northwestern Guangxi, and the local temperature dropped by more than 12℃. This morning, the temperature 0℃ line is located in southern Shandong, northern Anhui, southern Henan and central Shaanxi.
2. Key weather forecast
(1) There is a wide range of rain and snow in the central and eastern regions.
From December 13th to 15th, there will be a large-scale rain and snow weather process in the central and eastern regions. There will be light to medium snow in northern Xinjiang, eastern Northwest, Inner Mongolia, North China, northern Huanghuai, south-central Northeast China and central and eastern Qinghai-Tibet Plateau, and heavy snowstorms in parts of southern Shaanxi, north China, northern Huanghuai, southern and eastern Northeast China, and freezing rain in central Shaanxi, southwestern Shanxi and central and northern Henan. There are moderate to heavy rains and local heavy rains in Huanghuai, Jianghuai, Jianghan, northern Hunan and northern Chongqing.
(2) The cold wave will bring drastic cooling to most parts of China.
From the night of December 12 to the 16th, a cold wave will affect most parts of China from west to east in Xinjiang, with the temperature dropping by 8 ~ 12℃ successively, and the temperature drop in some areas can reach above 14℃, accompanied by northerly winds of 4 ~ 6, with gusts of 9~10 in the eastern and southern seas.
Second, the global weather situation
1. Reality
（1）Strong snowfall occurred in Canada, Eastern Europe and other places
In the past 24 hours, small to medium snow or sleet appeared in western Siberia and the Far East of Russia, Northern Europe, Eastern Europe, the Balkans, the Caucasus, western and eastern Canada, Alaska and the northwest of the United States, and the local area was as big as blizzard or heavy blizzard.
（2）Strong rainfall occurred in Italy, the United States, Brazil and other places.
In the past 24 hours, moderate to heavy rain occurred in the Korean Peninsula, central and eastern China, Japan, Southeast Asian Islands, Sri Lanka, New Zealand, tropical islands in northeastern Oceania, Western Europe, Southern Europe, central and southeastern Africa, eastern and northwestern United States, south-central Brazil, Paraguay, northern Argentina, Colombia, Honduras and other places, and local heavy rain or heavy rain occurred. High temperature weather above 35℃ occurs in north-central Australia, central and southern Africa, southwestern India, Thailand, southern Laos and other places. Among them, some areas in central Australia and other places exceed 37℃ and local areas exceed 40℃.
2. Key weather forecast
(1) There is heavy snowfall in eastern Europe, western Canada and other places, and there is heavy rainfall in northern Australia and northern Argentina.
In the next three days, there will be moderate to heavy snow in parts of Pamirs, eastern Russia, Kamchatka Peninsula, northern Korean Peninsula, Eastern Europe, western Canada, Alaska and other places, heavy snow or heavy snow in some areas, and heavy snow in western Canada and other places; There are moderate to heavy rains on the Korean Peninsula, the Jianghuai area in China, the northwest Balkan Peninsula, the western coast and northeast of Canada, the central United States and Florida Peninsula, Guatemala, northeastern Australia, Mozambique and northern Argentina, and some areas have heavy rains or heavy rains.
(2) Continuous high temperature weather in Australia, South Africa and other places
In the next three days, the highest temperature in parts of central and southern Africa, western and northern Australia will reach 35 ~ 37℃, and the local temperature will exceed 40℃.
Third, the domestic specific forecast for the next three days
From 08: 00 on December 12 to 08: 00 on December 13,There are small to medium snow or sleet in parts of northern Xinjiang, most of Tibet, south-central Qinghai, northwestern Shaanxi, western North China, and western Huanghuai. Among them, there is heavy snow (5 ~ 9 mm) in Xinjiang along Tianshan Mountain, Ili Valley, and northeastern Tibet. There are small to moderate rains in most parts of Yunnan, northeastern Sichuan, central and southern Hubei, southern Henan, northern Fujian, northern Hainan Island and central and eastern Taiwan Province Island, among which there are heavy rains (50-80 mm) in central and southern Yunnan. There are 5 ~ 7 winds in parts of central and southern Tibet and northeastern Sichuan Basin, among which there are 8 ~ 9 winds in parts of eastern Xinjiang (see Figure 1).
Figure 1 National Precipitation Forecast Chart (08: 00 December 12-08: 00 December 13)
From 08: 00 on December 13th to 08: 00 on December 14th,There are small to medium snow or sleet in parts of central and eastern Xinjiang, eastern Tibet, southern Sichuan Plateau, southern and eastern Northwest China, most of Inner Mongolia, central and southern Northeast China, north China, northern and western Huanghuai, among which there are heavy snowstorms (10 ~ 18 mm) in parts of southeastern Tibet, southern North China, central and southern Hebei, northern and western Henan. There are small to moderate rains in most parts of Yunnan, southern Guizhou, northeastern Sichuan Basin, Hubei, northern Hunan, Anhui, south-central Shandong, Jiangsu, most of Guangxi, western Guangdong, and most of Hainan Island. Among them, there are heavy rains (25-40 mm) in southwestern and central Yunnan. There are 4 ~ 6 winds in parts of western Inner Mongolia, north-central Tibet, southwestern Shaanxi, western Sichuan Plateau and northeastern Yunnan, among which there are 7 ~ 8 winds in parts of eastern Xinjiang (see Figure 2).
Figure 2 National Precipitation Forecast Chart (08: 00 on December 13th-08: 00 on December 14th)
From 08: 00 on December 14th to 08: 00 on December 15th,There are small to medium snow or sleet in most parts of Inner Mongolia, the central and eastern parts of northwest China, the central and southern parts of Northeast China, North China, the northern part of Huanghuai, the southeastern part of Tibet, and the southern part of the western Sichuan Plateau. Among them, there are heavy blizzards in parts of eastern Liaoning, southeastern Jilin, southern Tianjin, southwestern Shanxi, central and southern Hebei, northwestern Shandong, and central and northern Henan, among which there are heavy blizzards (20-25mm) in northern Henan. There are moderate to heavy rains in parts of southwestern Shaanxi, south-central Huanghuai, northern Jianghuai, Jianghan, northeastern Sichuan Basin, northeastern Chongqing and northern Hunan. Among them, there are heavy rains (50-60 mm) in southern Shandong and northern Jiangsu. There are 5 ~ 7 winds in parts of western Inner Mongolia, eastern Liaoning and eastern Qinghai, among which there are 7 ~ 8 winds in parts of northern Tibet (see Figure 3).
Figure 3 National Precipitation Forecast Chart (08: 00 on December 14th-08: 00 on December 15th)