1. Weather conditions
1. Live domestic
（1）Rainy and snowy weather occurred in Hubei, Anhui and other places, and heavy rain occurred in Zhejiang, Fujian and other places: From 08:00 yesterday to 06:00 today, some areas in eastern Gansu, southern Shaanxi, western Henan, eastern Hubei, central and southern Anhui, Jiangsu and Shandong Peninsula suffered light to moderate snow, rain to sleet or sleet; Southern Hunan , There were heavy rains or heavy rains in parts of central and southern Jiangxi, central and southern Zhejiang, and central and northern Fujian, and local heavy rainfall (100-133mm) in Lishui, Zhejiang, and Wenzhou.
（2）Significant high winds and cooling weather conditions were experienced across most of the central and eastern regions: At 05:00 today compared with 05:00 yesterday, northern and eastern parts of northeast China, central and southern northern China, and most of southern northern China experienced a 6- 10°C. Shanghai, central Zhejiang, central and southern Jiangxi, southeastern Guizhou, northeastern Guangxi, some areas in northern Guangdong and other locations recorded a drop of 12-18°C; in some of the aforementioned locations, gusts of magnitude 6-8 areas have appeared, with local magnitude of 9-11. At 05 o’clock today, the 0°C temperature line is from the central part of Jiangsu and Anhui to the southern part of Shaanxi.
2. Live abroad
（1）Significant rainfall in northern Australia, Brazil, central Africa and other places ：Moderate to heavy rainfall, local heavy rainfall, or heavy rainfall occurred in parts of Northern Australia, New Zealand, Tropical Islands of Southeast Asia, Central Africa, East Africa, Madagascar, southern Mexico, Colombia and eastern Brazil.
（2）Significant snowfall in central Siberia, Canada and other places ：Alaska, central Siberia, eastern Central Asia, northern Europe, southern Canada, northern portions of the five major lakes, and the northwestern United States experienced light to moderate snow or sleet and local heavy snowstorms .
2. Main weather forecasts
1. home key time
（1）The temperature in the south is low
Affected by strong cold air blowing south, the average daily temperature in most of the south of my country over the next couple of days will be significantly lower than in the same period in normal years. Average daily temperatures forecast in northeastern Guangxi, eastern Guizhou, Hunan, Jiangxi, western Fujian, central and western Zhejiang, southwestern Jiangsu, central and southern Anhui, large parts of Hubei and southeastern Henan from December 1 to December 2nd. The average daily temperature in northeast Guangxi, southeast Guizhou, Hunan, western Jiangxi and southern Hubei were about 7℃ lower than in the same historical period. North wind, gusts 6-8. In addition, influenced by the cold air, the average daily temperature in parts of central Inner Mongolia, northern and eastern Heilongjiang is also 5-7°C lower than in the same historical period (see Figures 1 and 2). Central Meteorological Observatory12moon 1Day06Time keep postingyellow at low temperatureearly warning.
Figure 1 The National Average Temperature Anomaly Forecast Map (12moon1Day08Time – 20:00 on 2 December)
Figure 2 The national minimum temperature forecast map (12moon1Day08Time – 20:00 on 2 December)
（2）West Jiangnan and the northThere is rain and snow in other places
On December 1, it will rain and snow in parts of Hubei, Guizhou and western and northern parts of Jiangnan, and freezing rain in parts of Guizhou, Hunan and other places.
2. foreign weather
（1）Significant snowfall occurred in central North America, Central Asia, and East Asia:Over the next three days, there will be moderate to heavy snow in the Northern United States, South Shore of Hudson Bay, Northern Five Main Lakes, Western and Southern Canada, Labrador Peninsula, Baffin Island , in northern southern Europe, northeastern eastern Europe, and eastern central Asia.
（2）Significant rainfall in northeastern Australia, northwest and eastern South America ：In the next three days, there will be moderate to heavy rain, local heavy rain or heavy rain in northeastern Australia, New Zealand, southern Mexico, Colombia, eastern Brazil, Peru, Bolivia, eastern Argentina, southern central Africa and eastern Africa southern .
3. Specific forecast for the next three days
12moon1 Day08time to2 Day08Now,Parts of northern Xinjiang, Shandong Peninsula, southern Shaanxi, western and southern Hubei, southern Anhui, northern Jiangxi, northern and western Hunan, and central and eastern Guizhou experience light to moderate snow or sleet . snowfall in the south and other places; light to moderate rainfall in eastern southwest China, large parts of Yunnan, large parts of Jiangnan, large parts of Guangxi, northern Guangdong, Hainan Island, and Taiwan Island. These include southern Yunnan, southeast Hainan Island, and Taiwan Island. Local heavy rainfall (25-45 mm) in the north, freezing rain in central Guizhou and western Hunan at higher elevations. Parts of central and eastern Inner Mongolia, northeastern China, northern Hebei, eastern Zhejiang, eastern Guangxi, Hainan Island, and central and southern Tibet have magnitude 4 to 6 winds, and some areas of the Central Tibet have winds of magnitude 7 or higher (see Figure 3).
image3 National Precipitation Forecast Map (12moon1Day08Time–2Day08Time)
12moon2Day 08time to3Day 08Now,There is light to moderate snowfall in parts of Xinjiang along the Tianshan Mountains and high-elevation mountainous areas in southwest, eastern Jilin, and eastern Liaoning; Northern and eastern Guizhou, central and southern Yunnan, most of Jiangnan, central and northern Guangxi, northern Guangdong, Hainan Island, parts of Taiwan Island and other places experienced light to moderate rainfall. There are 4-6 winds in parts of central and eastern Inner Mongolia, northern Hebei, eastern Qinghai, southeastern Guangxi, and Hainan Island (see Figure 4).
image4 National Precipitation Forecast Map (12moon2Day08Time–3Day08Time)
12moon3Day 08time to4Day 08Now,There is light to moderate snow or sleet in some high-elevation mountain areas in southwest Xinjiang, eastern and northern Tibet, southern Shaanxi, northeastern Chongqing, and western Hubei; in eastern southwest, most of Jiangnan, western and northern Guangxi and Hainan, there was light to moderate rainfall in parts of Taiwan Island and Taiwan Island. There are 4-6 winds in parts of central and eastern Inner Mongolia, northern Hebei, Liaodong Peninsula, Shandong Peninsula, and northeastern Zhejiang (see Figure 5).
image5 National Precipitation Forecast Map (12moon3Day08Time–4Day08Time)
4. Influence and attention
1. The negative effects of the continuous low temperature in the southern region on epidemic prevention and control, energy supply, open field vegetables, forest and fruit economy, etc.;
2. Pay attention to the adverse effects of rain, snow and frost in the east of the southwest region and the north of the Jiangnan region;
3. Pay attention to the adverse effects of strong winds on vessels, operating platforms and offshore aquaculture in my country’s southeastern and southern waters.
To do:Qin Huafeng Chen Boyu Ma Jie Signed by: Dong Quan
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责编：杨煜 ]
