The National Day holiday started sunny and hot, and the "seasonal" cooling began on the 4th. What aspects should we pay attention to in temperature change?
China Meteorological Observatory predicts that during the National Day holiday (65438+ 10/7), there will be heavy precipitation in parts of northern Sichuan, southwestern Shaanxi, southern North China and Huanghuai. There are many persistent high temperature and little rain weather in Jiangnan and northern South China; Cold air may affect most parts of our country.
From September 30th to June 2nd 10, the northwest region will be affected first. It is predicted that the temperature will drop by 4 ~ 8℃ in parts of Xinjiang, central and western Inner Mongolia and Gansu, and 10 ~ 14℃ in some areas. Urumqi has a strong cooling. The highest temperature today is also 2 1℃, and it is 6℃ on the day of the holiday, and the lowest temperature is only 1℃, which is the lowest in the second half of the year.
Then1October 3 -5 10, most parts of the northern region will be affected by cold air one after another, with strong cooling and large-scale low temperature. On the morning of 4-5, the lowest temperature in eastern Inner Mongolia, northern North China and south-central Northeast China will fall below 0℃ in a wide range. Among them, the highest temperature in Beijing on the holiday day was 29℃, and after the arrival of strong cold air on the 3rd, the highest temperature dropped to 17℃, and the lowest temperature dropped to one place, especially in the northern mountainous areas, and the lowest temperature will be close to zero.
Under the influence of cold air, the holiday temperature in most parts of southern China will begin to reverse. During the period of June 65438+1October 65438+1October 4, under the control of the strong subtropical high, the autumn tigers in the south gradually became stronger. Among the provincial capital cities, Wuhan, Hefei, Nanjing, Hangzhou and Nanchang will get rid of the highest temperature record of 10. The highest temperature in Nanchang on the 4th may be around 39℃, which is as hot as summer.
Neither rise nor fall is high. 14-7 October 10, with the strong cold air heading south, the cold and heat in parts of Jiangzhun and Jiangnan were greatly reversed. The highest temperature in the high temperature area above 35℃ will drop to 20℃ or even 15℃. In metropolises, the highest temperature in Wuhan, Nanjing and Hefei will be around 37℃ on the 3rd, below 17℃ on the 5th and 20℃ on the 2nd, which is rare in the same period.
Strong cold air will not only cause a sudden drop in temperature, but also cause heavy rainfall. China Meteorological Observatory predicts that there will be moderate to heavy rain in northern Sichuan, southeastern Shaanxi, southern North China and parts of Huanghuai from June 5 to 10 3, with heavy rain in some areas and heavy rain in some areas, accompanied by short-term heavy precipitation, lightning and other heavy precipitation; From 4th to 6th, there were moderate to heavy rains in parts of northeastern Sichuan, northern Chongqing, southwestern Shaanxi, southeastern Henan and northern Hubei, and there were heavy rains in some areas.