Strong winds in the north hit Beijing-Tianjin-Hebei and other places, and local gusts of 10 meteorological experts analyzed the causes.

CCTV News:Affected by cold air, some parts of the north have strong winds. According to meteorological monitoring, there are 7 ~ 9 gusts in central Inner Mongolia, northern Ningxia, Shanxi, western Henan, western Hebei, western Beijing, western Liaoning and central Shandong, and the local wind power reaches 10. Why is the gale in the north so strong this time? When will the gale last? Let’s look at the analysis of experts from the Central Meteorological Observatory.

Chen Tao, chief forecaster of the Central Meteorological Observatory:Generally speaking, cold air is more active in autumn and winter, which is prone to windy weather. This round of windy weather has a wide range and strong intensity, and the wind in some areas is extremely extreme in North China and Huanghuai. This time, the cold air force affecting our country is relatively strong, and there are cyclones developing in Bohai area, which will cause a large pressure gradient between high and low pressure, which will cause the air to flow in a large range and form windy weather; The second reason is that today (October 9), the turbulent mixing at high and low altitude is relatively strong and the wind speed at high altitude is relatively high. This turbulent mixing will also lead to further increase of the wind near the ground; The third feature is that there will be some valleys or canyons in some parts of North China and Huanghuai areas, which will cause the narrow tube effect of fluid and further accelerate the airflow, forming local strong winds. Today is the strongest day under the influence of windy weather, mainly concentrated in the area from North China to Huanghuai, especially in Beijing, Tianjin, Hebei, Henan and Shandong, where the wind is still relatively strong, and there will be 5 ~ 6 winds generally, and the gust wind can reach 9 or even 10 or more. On the 10th, cold air continued to move eastward, and windy weather mainly appeared in parts of the eastern part of Northeast China.