Beijing News (Reporter Wang Jingxi) After a rainy and snowy weather, the wind blew in Beijing for four consecutive days. This afternoon, Beijing lifted the blue warning for strong winds, but the forecast shows that there will still be short-term strong winds of around level 6 tom

Beijing News (Reporter Wang Jingxi) After a rainy and snowy weather, the wind blew in Beijing for four consecutive days. This afternoon, Beijing lifted the blue warning for strong winds, but the forecast shows that there will still be short-term strong winds of around level 6 tomorrow, and there will still be obvious northerly winds in Beijing on Sunday night. Why does Beijing’s Feng have such a tight “schedule”? Will the wind tomorrow and the day after tomorrow affect the weekend travel experience? The reporter interviewed Zhang Linna, chief forecaster of the Beijing Meteorological Observatory, to answer the above questions.

During the day today, the average wind force in Beijing was around level 4, with gusts around level 7, and local winds in mountainous areas reached level 9 or above. This morning, Haidian and Shijingshan District upgraded the blue gale warning to yellow. The warning information showed that local gusts could reach around level 10.

Under the influence of strong cold air, Beijing first experienced rain and snow, followed by strong winds, which lasted for four days starting from the 25th. Zhang Linna, chief forecaster of the Beijing Meteorological Observatory, said that the windy weather this time was because Beijing was affected by the cold air guided by the cold vortex (cold vortex). Generally, the cold vortex moves from west to east near mid-latitudes, and is affected by the cold air behind the cold vortex. Due to the influence, strong windy weather will occur.

On November 26, citizens on Yinghuayuan East Street, Chaoyang District, Beijing were "fully armed" to deal with strong winds. Photo by Beijing News reporter Wang Guibin

Why did the strong wind last so long? Zhang Linna said that the intensity of the cold vortex was relatively strong, the scope of influence was large, and the moving speed was relatively slow. Cold air was constantly being "thrown out" behind the vortex, which caused the strong winds in Beijing that lasted for several days. "This time the cold vortex moves slowly, so its impact will last longer." Zhang Linna told reporters.

Fortunately, the impact of strong cold air on Beijing has come to an end. This afternoon, Beijing lifted the blue warning for cold wave and strong winds. The cold wave warning was issued on the 24th and lasted for 5 days; the gale warning was issued on the 25th and lasted for 4 days.

The large-scale impact of cold air on Beijing has ended, and the wind will be significantly weakened tonight.

It should be noted that the wind will increase again around noon tomorrow. This is caused by thermal effects and is not caused by cold air. The intensity of the wind is not as strong as in the past few days. Zhang Linna predicts that there will be short-term gusts of around level 6 in the Beijing plain area tomorrow. “It may reach around level 7 in some places, but the wind duration tomorrow will be relatively short, probably from 11:00 to 15:00 and 16:00. Among them, there will be three The wind will be relatively strong around the next hour. The wind has decreased at other times. "

On Saturday, the wind in Beijing was not strong, with winds turning from north to south at level 2 or 3, and the maximum temperature rose to 12 degrees Celsius. It was a good weather for traveling.

It is expected that another wave of cold air will arrive in Beijing on Sunday, and it will be windy in Beijing. "The wind is expected to start in the afternoon, and the weather is still very good most of the time on Sunday. From the afternoon to night, there may be northerly winds of about level 3, with gusts of level 6 or 7." Zhang Linna said that on Sunday, The second wind does not last that long and mainly occurs from the afternoon to night of December 1. The wind will decrease on December 2.

The Beijing Meteorological Observatory predicts that it will be cloudy and sunny during the day tomorrow, with north to south winds around level 3, short-term gusts around level 6, and a maximum temperature of 14°C. There will be strong short-term wind gusts in plain areas from noon to afternoon tomorrow, and the wind will decrease in the evening. Keep warm when going out, and beware of fires and carbon monoxide poisoning.

Tomorrow and the next two days (29th and 30th), the weather will be mainly sunny, and the temperature will rise significantly during the day. The maximum temperature will be around 12℃, and the minimum temperature will be between 0~2℃. The weather around noon is suitable for outdoor activities and opening windows. ventilation.

editor Zhang Lei

proofreader Li Lijun