is not a joke!
The real cold winter is coming!
Cold air is shipped from the polar region. The strength is magnificent.
Recently, because the Arctic vortex is relatively active and its location is closer to the northern part of my country and the side of Siberia
, so cold air is constantly splitting out and moving south. Influence my country
. In addition, the Ural Mountains and Okhotsk Sea two blocking high-pressure
is more conducive to the accumulation and strengthening of cold air, so cold air activity is also constantly strengthening
↑ The above picture is a 500hPa wind farm + temperature diagram on December 14. The redest part indicates the lowest temperature, which is almost the coverage area of troposphere polar vortex, and my country's location is a little left below the figure.
Switch to Central Meteorological Observatory 's diagram will be more obvious
You can see that polar vortex is obviously tilted here
and form a wide horizontal large trough
0 Cold air from the polar region continues to pour south and affect my country
Wait a few days later. After this horizontal trough turns vertical. After swaying down
is a stronger cold air. The deeper impact of
What kind of
0 For this latter trough
This afternoon, the Central Meteorological Observatory has issued important weather tips ↓
It is expected that from December 15th to 17th, strong cold air will affect most parts of my country, bringing strong winds, cooling and rainy and snowy weather.
This time the cooling range is wide, and the lowest temperature in some areas in the south is extreme. It is expected that from the 15th to the 17th, strong cold air will affect my country from west to east from northern Xinjiang, and most areas will experience a cooling of 4 to 8℃, and some areas such as northern Xinjiang, southern Shaanxi, eastern Sichuan, Shanxi, southern Jiangsu, southern Anhui, Shanghai, Zhejiang, Fujian, and eastern Guangdong will have a cooling of more than 10℃. Around
18, the minimum temperature 0℃ line will press south to northern Guangxi and northern Guangdong. The lowest temperature in Shanghai, eastern Zhejiang, eastern and southern Fujian, eastern and southern Guangdong will approach or break through the historical extreme value during the same period. After the cold air is affected, , in the northern region will gradually warm up around the 18th, and the southern region will start warming up after the 19th.
Although the cooling rate seems ordinary
is not as good as the "strongest cold wave this winter" at the end of November
But you have to know that this is the first few rounds of cold air to cool down again
The temperature has been at a low level
and the previous cooling effect is superimposed
The characteristics of continuous low temperature are more significant
In a sentence summary, it may not reach the cooling rate of the cold wave
but it can push the cold feeling to the next new stage
No coldest only colder
is the real cold winter experience
not only that This round of strong cold air
will also be the deepest round of cold air
18 around the world The frozen line will cross Wumeng Mountain , Nanling
Previously, if there was a "barrier", Yunnan, Guangdong, Guangxi and other places,
will also feel the power of freezing
Kunming's minimum temperature will drop to freezing point for the first time
Fuzhou, Guangzhou and other places will drop below 5℃
, and they will hit new lows in the second half of the year
or even strong cold air can bring significant cooling to Vietnam
far away in Southeast Asia ↓
↑ Feel the north wind on the 18th, and blow all the way to Southeast Asia...
Look at the in northern Vietnam in Hanoi 18, the temperature dropped sharply↓
is so cold Will it snow?
There will be snow, but not much.
Under the continuous suppression of cold air, it is difficult for water vapor to transport northwards
Therefore, most parts of the country have been dry and light rain recently
0 The rain and snow brought by the strong cold air behind
is also weak overall
Central Meteorological Observatory predicts that from the 15th to 17th, there will be light to moderate snow or sleet in the northwest region and western Inner Mongolia, Shandong Peninsula , central and southern Henan, central and northern Jiangsu and Anhui, Hubei, Guizhou, western Sichuan Plateau, etc., there will be heavy to blizzards in some places, and there will be frozen rain in some places, including western Guizhou and other places.
It is worth mentioning that
17 to the 18th. As strong cold air crosses Wumeng Mountain,
There is also a possibility of snowfall in eastern Yunnan
However, will Kunming take the opportunity to usher in the early snow this winter
It is still to be determined. It is necessary to observe
The real cold winter is coming soon
What kind of cold weapon have you prepared?
(Source: China Weather Network )
