Before the rain of a rainstorm During the rain When is the coldest time after a rainstorm?

In fact, there are many types of heavy rainfall, but short-term heavy precipitation with significant changes in temperature in a very short period of time is generally caused by the squall line. The characteristics of such systems during transit are very obvious, strong winds, sudden changes in wind direction, and some can change from a quiet wind (within 5 minutes) to a strong wind of 10 m s; The temperature drops sharply, 5 °C in 5 minutes, 10 °C in an hour, and so on; The change in air pressure is a little more complicated, the transit is violently raised, and in ten minutes, a few hundred pascals, it will go up. So, back to the question, the summer rainstorms caused by the squall line are the coldest in the rain.

Of course, even if the temperature rises after that, it may not be very fast. <>

The first type of cold front is also called a slow cold front, and you know that it does not move fast when you hear the name, so the air in front of the front is relatively slow, and the formation is mainly stratiform cloud systems (Nimbostratus NS, Altostratus AS, Cirrostratus CS, Cirrus CI, Altocumulus AC will not be repeated later), and precipitation is mainly concentrated in the front of the front. So, we know that the precipitation of the first type of cold front is concentrated in front of the front, and the cold air is after the cold front, so the precipitation of the first type of cold front is mainly colder after the rain. (Nag, the so-called autumn rain and cold means that the cold air in early autumn is frequent, moving from the north to the south again and again, making the weather colder and colder.)

The second type of cold front, isolated thunderstorm, before talking about the second type of cold front, we must first understand the structure of thunderstorms, thunderstorms are mainly produced in cumulonimbus clouds CB, a mature and can produce precipitation of the internal structure of thunderstorms, due to the gravitational drag of precipitation particles, the thermodynamic process of cloud water, the precipitation area of mature thunderstorms will have a larger, stronger downdraft area, and the temperature is low, the sinking air accumulates on the ground, so that the pressure increases, X forms a high-pressure area, which is called thunderstorm high pressure, In the thunderstorm high pressure is a bunch of cold air. (Long-winded: In addition to accumulating, the downdraft will spread out like a strong wind when it hits the ground, so it will also blow before a thunderstorm.)

The thunderstorm high is counted as a mesoscale cold high and is equivalent to a smaller cold front, which is called a gust front. So, the cold of an isolated thunderstorm occurs when it rains. The second type of cold front, also known as the rapid cold front, is a rapid air lift due to its fast moving speed and steep front, and is usually preceded by cumuliform clouds and undulating clouds (undulating clouds:

Cirrocumulus cc, Altocumulus AC, Stratocumulus SC; Cumuliform: Cumulus cu) is dominant. <>

Because of the environment in which I work, the rainstorms I encounter are generally divided into two major situations, one is frontal precipitation and the other is thunderstorm precipitation. Frontal precipitation is generally divided into cold front precipitation and warm front precipitation, the cold front is the front formed by the cold air in the back pushing the warm air in the front, so it generally becomes cold after precipitation; The warm front is the opposite, for the warm air in the rear to push the cold air in the front, so generally before the precipitation is colder thunderstorm precipitation is a strong convective weather, in the thunderstorm cloud location is a thunderstorm high pressure, accompanied by a downdraft, when the intensity is strong, it is a downburst, on the radar map as a gust front, generally in the duration of the thunderstorm temperature plummets, dissipate or move out and then recover, so the thunderstorm precipitation becomes colder. <>

I think that after a rainstorm is the coldest after a rain, where water evaporates and absorbs heat.

Before the rain, during the rain, the water vapor liquefied and exothermic.

After rain, water evaporates and absorbs heat.

So it's cold after the rain.

I think it's coldest after a rainstorm.

After the rain, the air becomes colder, and the rain evaporates to absorb heat.

It's the coldest in the rain, because that's when the temperature drops.

I guess it's after the rain, and the heat is driven away after the rain.

Before the rain, during the rain, the water vapor liquefied and exothermic.

After rain, water evaporates and absorbs heat. So it's coldest after the rain.

The coldest morning is approaching, and there is a good chance of heavy rainfall, but no first snowfall.

It's raining, and it's hard to get the temperature up during the day. According to the Shanghai Central Meteorological Observatory, the highest temperature in the city today is only. Not only Shanghai, but also many parts of central and eastern China have hit new lows since the beginning of autumn this year, and the autumn layout is expanding southward again, and Hangzhou yesterday was "running into autumn" (the average time for autumn in Hangzhou is usually late September).

According to the analysis of meteorological experts, the Jiangnan region is now in the stage of "summer and autumn melee", and the sawtooth war between the two will continue for a period of time, and it may reappear in summer. The combination of cold air and warm, humid air currents made it rain for several days in Shencheng. The reporter learned from the Municipal Meteorological Bureau that there will be scattered showers during the day tomorrow, precipitation will stop until Sunday, and the temperature will also return to 27.

So far, this year's total precipitation has ranked second in the same period in history. As of January this year, the total precipitation at Xujiahui Station in the central urban area was millimeters, the second highest since official meteorological records began, second only to the millimeters in the same period in 1999. A wave has not settled, and another wave has risen.

According to the analysis of Mr. Li, a meteorological analyst at the China Meteorological Network, the impact of the last cold air has not ended, and today it has ushered in the impact of new cold air, and the two waves of cold air are "seamless".

Rain and first snow are possible, but I think it's regional, because the earth and the sun are turningAt present, the Chifeng area of Inner Mongolia has ushered in the first snow, and the rain in Yunnan, Guizhou and the middle and lower reaches of the Yangtze River is relatively strong. Everyone must pay attention to keeping warm, especially in the evening and morning.

Yes, because it is now already autumn and the previous typhoon has just left, and the heavy rainfall is still in some areas, and there is a high chance of snow in some areas in the north.

Yes. It's been autumn for a long time, and the weather is getting colder, and there may be heavy rainfall or snowfall.

The first snowfall will not be so soon, it will only be autumn, and it will gradually cool down first. When the temperature drops to a certain level, it will start to snow.

I'm in Inner Mongolia, and I think it's going to be the first snow, because the temperature here is getting lower and cooler every day, and the wind is getting stronger day by day.