From tomorrow (May 17) to 19, the first round of large-scale high temperature weather in northern China will hit this year. Henan, Shandong, Hebei, Shaanxi and other provinces will have high temperature weather above 35 ℃, which may break the record of the highest temperature in mid May. China Weather launched a high temperature clock in calendar for big cities to see where the first high temperature of this year will be, where the heat lasts and is as hot as summer.

"This round of high temperature began to develop on the 17th and expanded on the 18th, mainly affecting the North China Plain, the Huang Huai River and the Guanzhong area of Shaanxi." According to Hu Xiao, the chief meteorological analyst of China Weather Network, there will be 35 ℃ or even 37 ℃ high temperature weather in northern Henan, western Shandong, southern Hebei, and Guanzhong of Shaanxi, and in northeastern Henan Western Shandong may break the record for the highest temperature in mid May.

According to the high temperature clock in calendar of big cities launched by China Weather Network, Zhengzhou and Xi'an are likely to experience high temperatures for two consecutive days. The highest temperature in Zhengzhou on the 17th may reach 37 ℃, which is full of heat. The highest temperature in Jinan on the 18th may reach 35 ℃, which will also be the first high temperature weather in these cities this year. At the same time, the highest temperature in Beijing, Taiyuan, Yinchuan and Hohhot can reach 34 ℃, which may also lead to high temperature.

Will this high temperature heat up day and night? Hu Xiao introduces: “ From the 17th to the 19th, due to the eastward movement of a relatively strong warm high pressure, the skies in North China, Huang Huai and other places were clear and the solar radiation was strong, day The heating speed of the dry heating air mass is fast, and the temperature is high, so it is easy to have high temperature weather; The temperature drops rapidly at night and the temperature difference between day and night is large, so there will be no hot 24-hour standby. ”

The duration of this high-temperature process is not long, and it is expected that the high-temperature range will be significantly reduced on the 19th. After this round of high temperature process, the temperature in the North China Plain has declined, but the cooling range is not large. For example, the highest temperature in Zhengzhou will still be 31 ℃ To 33 ℃; In some areas of northwest China, there may be high temperatures. In cities, the highest temperature in Xi'an on the 21st is 34 ℃, and the highest temperature in Lanzhou on the 22nd is 34 ℃. There is a possibility of high temperatures, so we still need to pay attention to heatstroke prevention.

Hu Xiao reminds, The high temperature of this round is dry heat type, In sunny weather, the public should try to avoid going out in high temperature, and pay attention to sunstroke prevention and sunscreen; In the afternoon, the ozone concentration is also easy to increase, and health protection is required. At the same time, There will be moderate to severe dry hot wind in southern Hebei, western Shandong and northern Henan, and the increase of temperature will also speed up the soil moisture dissipation. Farmers please timely water and irrigate to ensure the wheat grouting. (Text/Song Huacheng Data Support/Hu Xiao Design/Zhang Li)