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What's the matter with the record breaking high temperature in many places
A few days ago, many places in the North suffered the first round of high temperature this year, and the highest temperature in many cities set new records this year. Many places in Beijing, Tianjin and Hebei successively issued high temperature warning. According to the prediction of the central meteorological station, the high temperature in the north will continue on the 23rd, with the local maximum temperature breaking 40 ℃.
Beijing, Tianjin and Hebei issued high temperature warning
On the 22nd, the high temperature in North China was slightly exposed, especially in Beijing Tianjin Hebei region. The temperature in Beijing, Tianjin, Southern Hebei and Northern Henan reached 35 ℃ and 37 ℃ locally.
Beijing issued a high temperature yellow warning signal on the afternoon of the 21st. The highest temperature in Beijing was close to 36 ℃ on the 22nd. The highest temperature in Tianjin once reached 37 ℃ on the 22nd, and the Tianjin Meteorological Station also issued a high temperature yellow warning signal at 8:45 on the same day.
In Southern Hebei, the highest temperature in Handan on the 22nd approached 38 ℃. Hebei meteorological station issued an orange warning signal at 10:07 on the 22nd.
However, this round of heat wave did not stop, and the Central Meteorological Station issued a high temperature forecast at 18:00 on May 22.
According to the prediction of the Central Meteorological Observatory, from May 23 to 24, high temperature weather of 35-37 ℃ will appear in the central and eastern part of North China, most of Huang Huai River, western Liaoning and central Yunnan. Among them, the highest temperature in parts of southern Beijing, Tianjin, central and Southern Hebei, Northern Henan, central and Northern Shandong and Western Liaoning can reach 37-39 ℃ and locally exceed 40 ℃.
Among them, 24, Southeast Inner Mongolia, western Liaoning high temperature weather continued. Shenyang may reach 36 ℃ on May 24, which will break the local record of the hottest and the earliest high temperature in May.
Beijing is facing a high temperature "four strikes", which lasts from May 22 to May 25. It is sunny and hot in the early stage, and sultry in the late stage, and the local temperature can reach above 37 ℃.
Why is this round of high temperature weather in the north so high-profile
From the meteorological point of view, high temperature refers to the weather when the daily maximum temperature reaches 35 ℃ or above, and high temperature heat wave refers to the continuous high temperature reaching more than 3 days.
According to the report of China weather.com, from a year-round point of view, the heat in May in northern China is "high-profile". The number of high-temperature days in major cities is more than that in southern China, and the extreme highest temperature is also much higher.
For example, Beijing, Tianjin, Shijiazhuang, Zhengzhou and other places all had high temperatures of more than 40 ℃ in May. The highest temperature in Beijing was 41.1 ℃, while the highest temperature in Shanghai was only 35.5 ℃. Changsha, Hangzhou, Nanjing, Jiangxi and Guangzhou were all around 36 ℃.
Strong sunshine, dry and warm air mass control and low air humidity are the main driving forces behind the dry and hot weather in North and Northeast China, according to the meteorological analyst of China Weather Network.
From late May to early June every year, affected by the high pressure of the mainland, the weather in North China is sunny and the solar radiation is strong. In addition, the air humidity is often low and the heating speed is fast, so it is easy to form dry and hot weather.
Chen Tao, chief forecaster of the Central Meteorological Observatory, also said that generally speaking, the influence scope of this high temperature weather is relatively small, and the duration is short. As usual, there will be regional or periodic high temperature weather in May. This year's high temperature is not too early.
In addition, experts remind that when the summer mode is turned on, the weather is sunny and hot, and the ultraviolet rays are strong. Please try to reduce your outdoor activities during the high temperature period, and pay attention to heatstroke prevention and cooling.
When will the hot weather end? When will the current round of hot weather come to an end
According to Chen Tao, after the high temperature weather, there will be a large range of cooling and rainfall weather process. From the 24th to the 27th, there will be strong winds in most parts of northern China and dust weather in southern Xinjiang basin, eastern part of Western China and central and Western Inner Mongolia.
From the 25th to the 27th, there will be obvious precipitation and strong wind cooling in North China and Northeast China. From the 24th to the 28th, there will be obvious precipitation weather process in the Huanghuai River and most areas in the south. In some areas, there will be heavy rain, local heavy rain and severe convective weather.
In addition, from the 24th to the 28th, there will be moderate to heavy rain in the eastern part of Southwest China, Jianghan, Jianghuai, Jiangnan, South China, the middle and eastern part of Huanghuai, the eastern part of North China and Northeast China, rainstorms or torrential rain in some areas, accompanied by short-term heavy rainfall, thunderstorms, gales and other severe convective weather.
According to the data from the Central Meteorological Observatory, the temperature in northern China will fluctuate significantly in the next 10 days. Compared with the same period of the year, the average temperature in North China and Huanghuai is 1-3 ℃ higher, and the average temperature in most other parts of the country is close to or 1-2 ℃ lower.