Expert explanation: clear sky suddenly turns into storm! How can you say its changing in Beijing

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 Expert explanation: clear sky suddenly turns into storm! How can you say its changing in Beijing


Thunderstorm is caused by convection. In the daytime, when the sky is high and the clouds are light, the light cumulus clouds appear in the sky, just like cotton candy one by one; in the afternoon, there is convection, and after the vertical development, the cloud becomes a thick cumulus cloud. With the continuous strengthening of convection, there will be cumulonimbus clouds, and thunderstorms will follow.

The clouds in summer and autumn will be a little different. Li Chen said that when thunderstorms occur in summer, the cloud bottom height will be relatively low, and the humidity in the lower layer will be relatively large, resulting in poor vertical visibility. In summer and autumn, the height of cloud bottom will be higher and the humidity will be relatively small, so you can see the structure of the whole cloud in the vertical space, this is that you will find the cloud very beautiful and spectacular visually. When the vertical visibility is small in summer, you can basically not see the situation at high altitude.

Its not only beautiful clouds, but also rainbows in the capital after the rain these two days. Li Chen told reporters that the formation of a rainbow is due to the numerous small raindrops in the air after the rain, and the sunlight refracts through the water drops to form a rainbow. At a suitable viewing angle, the rainbow is clearly visible.

Although the rainbow appears after the rain, not every rain can find the trace of the rainbow. Since it is the transition season between summer and autumn, the temperature is not as high as that in summer. When the temperature is relatively high, the water droplets will exist for a short time and will soon evaporate. When the temperature is low, the water droplets can maintain for a long time, which is conducive to the appearance of rainbow.

(function(){( window.slotbydup=window .slotbydup||[]).push({id:u5811557,container:ssp_ 5811557, async:true }Under the influence of cold air, the weather in Beijing is mainly sunny to cloudy for three days, but there are still scattered showers in the mountainous areas in the afternoon. Among them, todays Day is sunny to cloudy, there are about 4 northerly winds, gusts can reach about 7, and the blue gale warning is also in effect. It is estimated that the maximum temperature in the day is 28 u2103 and the minimum temperature at night is 17 u2103. In the daytime tomorrow, there will still be showers in the western and northern areas of Beijing. On Saturday, the weather will be mainly cloudy and sunny. The maximum temperature will be about 30 u2103 and the minimum temperature will be less than 20 u2103. At present, the summer and autumn seasons change, and the temperature difference between day and night is large. It is necessary to increase or decrease clothes in time to avoid catching cold. Source: Beijing daily client editor: Wang Jiao_ BJS11432

Under the influence of cold air, the weather in Beijing is mainly sunny to cloudy for three days, but there are still scattered showers in the mountainous areas in the afternoon. Among them, todays Day is sunny to cloudy, there are about 4 northerly winds, gusts can reach about 7, and the blue gale warning is also in effect. It is estimated that the maximum temperature in the day is 28 u2103 and the minimum temperature at night is 17 u2103.

In the daytime tomorrow, there will still be showers in the western and northern areas of Beijing. On Saturday, the weather will be mainly cloudy and sunny. The maximum temperature will be about 30 u2103 and the minimum temperature will be less than 20 u2103. At present, the summer and autumn seasons change, and the temperature difference between day and night is large. It is necessary to increase or decrease clothes in time to avoid catching cold.