Weather proverb

The rainstorm precursor dragonflies and swallows fly low, ants move, fish come to the surface for air, and the rainstorm is coming soon.

Animal Prediction of Rain Before it rains, there will be swarms of mosquitoes, swarms of rain ants and cats washing their faces.

Frogs croak, swallows croak when it rains, swallows croak when it rains, and so on. It's a sign before it rains.

Cockroaches fly around and there are showers. Cockroaches are very sensitive to climate change. If you see cockroaches flying around at night, it means that the weather has changed and it is going to rain.

Spiders weave webs, and it will clear up after a long rain. Because it rained for a long time, spiders can't weave webs to catch food. If you see spiders crawling out and making webs, it means that the weather will clear up soon.

One autumn rain and one cold, ten autumn rains put on cotton.

It is sunny when it rains in the morning, and it rains until dawn at night.

The rain hits the fifth watch and basks in the puddle.

The south wind is warm, the north wind is cold, the east wind is wet and the west wind is dry.

After a long rain and a cold wind, the weather will become sunny and reliable.

Clouds are flying all over the sky, and it keeps raining and snowing.

Dark clouds cover the sky, and heavy rain comes quickly.

It's sunny on rainy days, but it's not sunny on the top of the mountain.

When the magpie branches call, it will be sunny when you go out.

Mosquito bites are strange, and the weather will get worse.

Moss floated in the river until it rained heavily.

Earthworms crawl on the road, the rain is like hemp, the mole sings, and the weather is fine.

Worm corridor, signs of rain, toad croaking, heavy rain is coming.

Ring, the wind blows.

The old cow looked up and sniffed the sky. It was raining. The horse's mouth is facing the sky, and the heavy rain is ahead.

References:

/Zhan Zheng/a78/0 1/009/09-5 . htm

Proverbs about the wind

Wind is a flowing atmosphere, and the atmosphere is what we commonly call air. The wind comes from the north, the south and other directions. Due to the inconsistent geographical attributes in all aspects, the winds in different producing areas have their diverse characteristics. There are cold air and hot air; There is dry wind and wet wind. The wind blowing from the desert carries dust; The wind from the ocean contains more water vapor. So in different winds, we have different feelings and can see different sky scenes. Furthermore, if two different winds meet, it is easy to conflict, and then you can see the sudden change of the weather.

Wind is the most easily perceived phenomenon, so there are many proverbs about it.

* The east wind is the mother of rain. (Hunan)

The east wind is fine, and if it does not fall, it will be cloudy. (Zaoyang, Hubei)

The rainfall in the temperate zone and its north (about 30 N) is mainly caused by cyclones. Cyclones always move from west to east, and northeast wind, east wind or southeast wind prevail in front of them. Therefore, when the cyclone comes, the wind direction must be easterly. Therefore, the east wind can be regarded as a harbinger of future cyclones. Because cyclone is a kind of storm and the main factor of rainfall in temperate regions, we can see that blowing east wind is a precursor of rainy days.

There is an easterly wind all around, so I'm afraid the easterly wind will make a noise. (Nanjing, Jiangsu)

The east wind is blowing hard and it is raining hard. (Shanghai)

* East wind is urgent, prepare a hat. (Hubei)

* East wind is urgent, prepare the hat, Yun Qi wind is urgent. The more urgent, the heavier the rain. ("Tian Hang" winds up)

These words mean: it doesn't necessarily rain from the east wind, but it will be terrible if the east wind is strong. Since the east wind is very small, such air flow must come from a very close place, perhaps a local air flow. All its attributes must be consistent with the local environment, so it is rare for the weather to get worse. However, if the easterly wind is strong, it means that the easterly wind in front of the cyclone is an airflow from a distance, and there will be a gap-the front of the airflow is moving locally, so the weather will change.

* Southeast wind, dry and loose. (Jiangyin, Jiangsu)

* The southerly winds flooded in May and dried up in June. (Zhejiang, Guangdong)

* In May, the south wind drove the hoses; In June, the south wind is starry at night. (Guangdong)

South wind with heavy rain in spring; The south wind in summer is empty. (Jiangsu Wuxi Hubei Zhongxiang)

It's sunny in the southwest in June. (Wuxi, Jiangsu)

* From June onwards, the southerly winds are ten catties and nine catties. (Hubei)

"The sky is clean" means the weather is fine; "Rush" means mountain rush, and "ten rushes and nine rushes" means mountain rush was killed in nine cases, and the drought was very serious.

This is a popular summer weather proverb in southeast coastal provinces. The southeast wind comes from the ocean. Why did you do it again? We know that the decline of rain, on the one hand, of course, there must be a substance that condenses rain-water vapor; At the same time, it is necessary to have the conditions to turn these water vapor into clouds and rain. This situation, in the summer in the southeast plain, depends on the convection of heat or the front activity between two airflow from different directions.

Thermal convection occurs because the ground is extremely hot, and the air in the ground layer rises upward because of the principle of thermal expansion and contraction, bringing the water vapor from the ground to the upper air for cooling, resulting in clouds and rain. But if the wind is too strong and the air flow on the ground is too fast, it is impossible to concentrate on the ground and receive strong heat, and it is impossible to make the water vapor on the ground rise. Also, in the pure southeast wind, due to the high altitude sinking of its birthplace, there is often an inverse ratio between high altitude and low altitude warming; In this way, the air on the ground is difficult to rise. Therefore, although there is a lot of water vapor in the southeast wind, it is still impossible to cause rainfall. There is no sex and rain in summer, and the natural weather is very hot.

Secondly, speaking of positive activities. The front is the conflict area of two different airflow. One airflow is cold and heavy, and the other airflow is light and warm. When these two air streams meet, the light warm air stream only rises and does not fall. As a result, the water vapor on the ground was carried to high altitude, causing clouds and rain. At present, there is only southeast wind on the ground, which means that there is no other northerly airflow colliding with it to form a front, so the water vapor can't rise and clouds and rain appear.

* Northeast wind, too much rain. ("Tian Hang" winds up)

The northeast wind is an air flow that originates from the northern ocean surface, or from the northern ocean surface and passes through a long-distance ocean surface, and naturally contains less water vapor than the southeast wind; However, because it is a cold air flow, its lower part touches the relatively hot ocean surface or land surface in the south, making its upper part cold and its lower part warm, resulting in convection. As a result, the water vapor on the ground was brought to the sky and had sex.

In addition, the front of the cyclone must be where the northeast wind moves, so there is front precipitation.

According to the statistical results, in the case of pure northeast wind, the probability of rain is only 26% in winter and only 1 1% in summer, which means that the probability of no rain is 74% and 89%. If it is the northeast wind before the cyclone, that is, the northeast wind area with active front, the probability of rain will exceed that of sunny days. Therefore, the proverb' northeast wind, too much rain' is not necessarily completely reliable.

* The spring breeze blows the east wind, and the grandfathers get wet. (Changzhou, Jiangsu)

* The spring breeze is easterly, and the rain is murmuring. (Guangdong)

These two proverbs mean that the east wind blows in spring, which is a precursor to bad weather. This is because, on the one hand, the ground will get warmer in spring. On the other hand, the warm air is gradually active, the continental pressure is gradually decreasing, and the anticyclone moves eastward into the sea. An easterly wind will appear at the tail of the anticyclone. These easterly winds flow to warmer land, leading to the phenomenon that the upper part is warm and the lower part is cold. At this time, the air layer is unstable and prone to upward convection, so it is very likely to produce precipitation.

* East wind and rain for three days a day; On the third day, the east wind disappeared. (Guixian, Guangxi)

* East wind and rain for three days a day; Three days of east wind and nine days of eyes. (Wuchang, Hubei)

* East wind and rain for three days a day; Dongfeng has no rice for three days. (Guangxi)

Cooking without rice is the result of drought and no rain. The cyclone moved from west to east, with the east wind ahead, but it soon blew up, and turned to another wind direction because of the advance of the cyclone. So the east wind blows for only one day, or less than one day, and the wind direction changes, indicating that there is a cyclone coming, so it may rain for three days. If the east wind blows for three days without rest, it means that there is no cyclone approaching in the west, so there is no rain in this place.

Proverbs about clouds

Clouds are dense drops of water or ice suspended in the sky. It can rain or snow from the clouds. Anyone who has experience in weather changes knows that whatever clouds hang in the sky is what the weather is. Therefore, clouds are the appearance of weather, and the shape of sky clouds can show the dynamics of weather changes in a short time. Cloud is a phenomenon that can be directly seen by the naked eye, so there are the most proverbs about it, which is more in line with scientific principles.

Fog is also a dense water drop or ice drop suspended in the sky. As far as existing entities are concerned, there is no difference between fog and cloud. But judging from the reasons for their formation and the environment in which they appear, they are two different things. The bottom of the fog layer is close to the ground, so it can be seen that the foggy air layer does not move upward, and the cooling process necessary for water vapor condensation is carried out in the stable air layer on the ground. This means that in foggy weather, the atmosphere is stable, and the atmospheric instability of clouds is just the opposite. The weather that finally evolved was just the opposite. Cloudy weather is mainly rainy, and foggy weather is mainly sunny. Similarly, fog is a phenomenon visible to the naked eye, so there are many proverbs about fog.

It's foggy in the morning and sunny all day. (Luanxian County, Hebei Province)

* Ten fogs and nine sunny days. (Shangqiu, Henan)

* One fog and three eyes. (Weixian County, Hebei Province)

The fog poisoned the sun. (Changzhou, Jiangsu)

* Get up early and get foggy, and break the gourd at noon. (Cang County, Hebei Province)

The fog in the morning is the product of radiation and heat dissipation on the ground last night: due to the clear sky, the heat on the ground spreads smoothly all night, and the water vapor in the ground air becomes saturated and condenses into fog drops. You can see that the weather will clear up first, and then it will be foggy. Morning is the lowest temperature between day and night. Because the temperature is coldest, the fog is thickest at this time. In addition, as soon as the sun comes out, some oxygen in the air becomes ozone because ultraviolet rays shine on it. This small amount of ozone will make a lot of dust (mostly combustion products, such as carbon dioxide, sulfur dioxide and so on) in the air. ) enhance your water absorption ability. So the fog curtain suddenly became thicker in the morning. But the sun rises, the heat intensifies, the ground becomes too hot, and the air in the lower layer will rise, so the fog drops will dissipate. In this way, the fog in the morning temporarily thickens, which is also the result of clear skies and sunny weather in Wan Li.

* Clouds cover the sky at night and wear shoes in the morning; It's foggy in the morning. Just wash your clothes and pants. (Hunan)

Clouds cover the sky at night, and there is no dew and frost on the ground in the morning. So don't wear rain boots when you go out in the morning. This is because the clouds in the sky can protect the ground from heat dissipation. If there are clouds at night, it won't be very cold in the morning, and the water vapor sticking to the ground won't condense into dew or frost, so the ground is clean.

It's foggy all over the ground in the morning, and the weather is good. Just wash your clothes and pants. Fog is the product of sunny days. If there is fog, it must be sunny.

* The fog does not exceed level 3. (Hunan)

* The fog will only last for three days, three days or eighteen days. (Hebei)

If the fog lasts for three days, there will be a strong wind. (Hu Hezhi Te)

* Where there is fog for three days, there will be heavy rain. (The Emperor's Century)

There are many kinds of fog, and the causes of all kinds of fog are also different. However, what can be called fog and can happen for three days in a row is probably low radiation fog, sea fog or tropical airflow fog.

Low-radiation fog appears in the high-pressure center of fine weather. Therefore, in foggy days, the temperature is very high during the day, which leads to low air pressure. If the weather is fine for three or four days, the local air pressure will be greatly reduced, so the airflow from other places will blow here and the weather will change.

If fog appears in the ocean airflow, it is called sea fog. Because this airflow comes from the ocean, the temperature is extremely warm and the humidity is extremely high, and then the local air pressure will gradually decrease and the weather will change.

In autumn and winter, tropical airflow often blows to the north. Because the ground is cold at this time, the air near the ground is also cold and foggy. This is called tropical airflow fog. The tropical airflow prevailed for three or four days. It must be warm and humid here, the air pressure became lower, and then the weather changed.

It's foggy in the morning and sunny at night. (Tai County, Jiangsu Province)

Early fog refers to the fog during the day. Cloudless weather, sunny, warm ground, airflow can only rise into clouds, it is impossible to stay on the ground and become fog. It's foggy during the day, but there are clouds in the sky and the sun is not there. This is a cloudy scene. Another possibility of fog during the day is the low-level clouds in the cyclone and on the warm front, which is the weather in the center of the cyclone, and of course rainy weather is just around the corner.

Night fog is fine. Night fog is equivalent to night fog and early morning fog, so it must be sunny.

* foggy days in spring, foggy days in summer; Autumn fog and cool wind, winter fog and snow. (Jiangyin, Jiangsu, Changsha, Hunan)

It's still cold in spring, and it's even colder on a clear night. The atmosphere is cold and heavy, the ground is calm, warm and light, floating on it, raising the temperature upwards. So the ground water vapor condenses into fog first, and then develops upwards; But the upper air temperature is warmer and there is less water vapor, so the development of fog is limited to the thin layer on the ground. It is only a few feet high, and the lowest is only as high as a human body. After dawn, the sun came out, because the sky is cloudless in Wan Li, the ground is hot, the fog rises and dissipates, and the sky is still strong sunshine. This is the explanation of "Spring Fog Day". But if the rising fog is prevented from rising by the warm air at high altitude, then the fog curtain will appear as a layer of clouds in the sky and the weather will be cloudy. So "the sun rises in the spring fog" is not inevitable.

In summer, the weather is hot, the days are long and the nights are short. It is impossible to cool the ground air to the point where it can condense fog in one night, so there can be no fog in summer in Mystery. If there is fog in summer, it may be because there are clouds in the sky, the lower layer is wet and thick, the sun is weak, the ground temperature is not strong, and the airflow does not move upward. This is a scene of cyclone weather. The fog you see may be a low cloud in a cyclone, so it's going to rain.

Fog in autumn and winter, like spring, is also the product of sunny days, so there are still many good weather during the day for the same reason as "spring fog". But the sunshine in autumn and winter is not as strong as that in spring. The so-called "autumn mildew and cool breeze, winter fog and snow" may be at the front of high pressure in the south, because cold air and local warm air often mix to produce fog. When the high pressure first came, the wind was quite strong and it could snow in winter. If it is in the center of high pressure, there may be a sinking westerly wind during the day.

* Clouds eat fog, and fog eats clouds. (Hohhot)

After the fog clouds, it rained; The clouds are clear and the sun is shining. Fog is more common in anticyclones, and the weather is unfathomable; Clouds that cover the sky are more common in cyclones and the weather is bad. After the fog, a big cloud came. Maybe the anticyclone has passed and the cyclone is coming. It is also possible that the sky is warm and wet, the fog is thick and clouds appear. This is the scene before the rain. On the other hand, if the clouds disappear and the fog rises, it means that the cyclone has gone, and the mysterious anticyclone weather has arrived, and it will be fine.

* When the fog goes down the mountain, the ground won't dry. (Hohhot)

* Clouds cover the bottom of the mountain, with little thunder and little rain. (Inner Mongolia Hu Hezhi Te)

* cloudy foothills, wet feet. (Yiwu, Zhejiang)

This refers to the phenomenon that the clouds on the mountain fall to the ground.

This is the cloud system in the cyclone. The farther you go to the center of low pressure, the closer you get to the rain area. So the phenomenon of low clouds indicates that it is going to rain and the ground is not dry yet.

* The fog will never stop and the rain will never stop; When the fog rises, it closes, and the rising sun can be found. (Yiwu, Zhejiang, Yuanxi, Jiangsu)

Fog usually appears on a clear night. Under normal circumstances, after sunrise, as the sun rises, the fog will slowly disperse, and there will be good weather with "the rising sun can be found". If the fog does not disperse after sunrise, it is likely that there are clouds above the fog. At this time, the fog can rise and meet the clouds, which will increase the thickness of the clouds and lead to continuous drizzle.

* Mountains are covered with rain, and rivers are covered with sunshine. (Fuling, Sichuan)

The cover on the top of the mountain is a low cloud covering the mountain. This is the scene of the rain area in the center of the cyclone, so it's going to rain. The cover of the river is low radiation fog, which is the product of sunny days and the result of cloudless days and ground heat dissipation. Therefore, it is said that "the river is facing the sun".

* Wear it at the top of the sky and hang it on all fours at dusk. (On Tian Xing)

* One day, one night, the main eye; On the contrary, it will rain. (On Tian Xing)

The meaning of "one day in the morning" is exactly the same as that of "one day in the morning", "one day in the evening" and "one day in the evening", which are all signs of sunny days.

After the sun goes down on a sunny day, the air on the ground is calm, and the air in the morning is even more silent. At this time, only when it condenses into low fog on the ground can there be no clouds. Therefore, "zenith wear" has become a guarantee of fine weather. In any mysterious weather, the sun is strong, and the ground airflow can rise to form clouds; But the four sides of the horizon are suspended and clean. This cloud is generated at the local zenith, or there may be convective thunderstorms, but it will soon disappear, so it is a sign of good weather in the future. If a storm comes in the distance, there must be thick clouds on the horizon, which can never be empty.

Proverbs about rain, snow and frost

Rain, snow, hail falling from the sky, dew and frost condensed on the ground are all changes in the state of water in the atmosphere, but each has its own meteorological causes and also indicates different future weather. Because these phenomena are the easiest to observe and have a direct relationship with people's lives, such proverbs are quite reliable.

* Summer rain separates the cow's back, and autumn rain separates the ash pile. (Zhejiang)

* Ten miles is a different day. (Wuxi, Jiangsu)

China has a continental climate, and most of the rain in summer belongs to hot thunderstorms or showers. The occurrence of thermal thunderstorms is basically due to the convective movement caused by ground heating, which sends the water vapor on the ground to the upper air and condenses into thunderstorm clouds. However, due to the different physical properties of different parts of the ground, the response to heat is also different, so the temperature of the ground is high or low. For example, the temperature in forest and grassland areas is low, and the temperature in barren land is high; The temperature of asphalt road is high and the temperature of cinder road is low. So in a small range, the strength of air convection can be very different. Convection here, thunderstorm clouds can happen, but not there. Because the area of thunderstorm clouds is only a few square kilometers, we often see the phenomenon that it rains in the south of the city and not necessarily in the north. This is the so-called "ten miles is different from the sky". There are still some scenes of summer in autumn, so there is also a saying that "autumn rain separates ash piles"

* It rains in the east and the wall is blocked; It's raining here and sunny there. (Shanxi Taiyuan, An Wei Quanjiao)

* Southwest array, single also dropped three inches. ("Tian Wu Jia Xing" talks about clouds)

* I lived to be eighty-eight, but I didn't see my head spread to the southeast. (Suzhou, Jiangsu)

Cyclones and other storms usually move from west to east, so only storms that occur in the west can affect the local area. The storm in the east will only go eastward, and it is impossible to affect the local area. So there is a saying that "it rains here and sunshine there".

* The rain crows, and the umbrella never leaves. (Yiwu, Zhejiang)

* Rain crow is ugly, don't leave your umbrella; It rained at dusk and was dry in Ming Dynasty. (Nanjing)

If it's sunny, there will only be fog in the morning and it won't rain. It is raining now, which means that the weather is not good and there may be a distant storm coming. A storm usually takes a day or more, and it can't be completed in a short time. Now, it began to rain in the morning, so in the next day, keep your umbrella. At dusk, the airflow in the upper air generally sinks, so the original clouds in the sky can easily dissipate (because the downward airflow is the hottest and driest airflow). At this time, if there are rain fragments in the cloud, it won't last long. However, if this rain is a rainstorm (that is, a systematic cloud rain moving from the west), then "rain at dusk" may not be "dry in the Ming Dynasty".

* It rains in the morning and it rains until dawn at night. (Shandong)

Chickens crow in the rain, but it won't rain for long. (Xiangshan, Zhejiang)

If it rains, it will be sunny. (Fuzhou, Fujian)

It rained in the morning, but it was sunny. (Cangxian County, Hebei Province, Qixia, Shandong Province)

* It rained one day earlier and one day later until dawn. (Shaanxi Wushu)

* The rain hits the fifth watch and the sun shines on the puddle. (It rains on Tian Xing)

* Yan Yu is not sunny. (same as above)

* Open the door. It will rain and be sunny before noon. (Wuxi, Jiangsu)

* Open the rain door and close your eyes. (Yuanxi, Jiangsu)

It's sunny when it rains long ago, but it's hard to be sunny when it rains late. (Wuxi, Jiangsu, Changshu, Zhejiang, Yiwu)

It rains at five o'clock in the morning, so you don't need an umbrella. (Yiwu, Zhejiang)

These articles all say that rain in the morning is the main sunny day, and rain at night is a sign of long-term rain.

* The night is clear, but there is no sunny day. (Hebei)

* Without a sunny night, it will rain continuously in the Ming Dynasty. (Yulin, Guangxi)

* See the stars after the rain, and it will rain more tomorrow. (same as above)

In the long rain, it will suddenly clear up at night, and it will still rain tomorrow.

It never rains before it rains, and it never rains after it rains. (Wushu in Hebei and Shaanxi)

Under high pressure, the air layer is very stable, and the dust and water vapor on the ground gather at low altitude, which is gray when looking up. Because this phenomenon is a sign of the stability of the air layer, the weather will not become rainy. After the rain, the air is still misty, which must be after the cyclone warm front. There is light rain in the air in the warm area, water vapor is flooding, and there is a cold front rainstorm, so it is impossible for the weather to clear up immediately.

* Don't make a big twist after rain, and don't make a long twist after rain. (Suzhou, Jiangsu)

"Twist" means light rain and "rain" means heavy rain. Twist before rain means that there is no heavy rain but light rain, which belongs to the category of stable rain. For example, rain falls in a pure tropical airflow. The tropical airflow itself is wet and warmer than the ground, so there is no large-scale thermal upward movement. It is only because of the upward movement of the power aroused by the vortex of the breeze that there can be no high and thick clouds, only scattered, layered and thin clouds, so it can only rain lightly, not heavily. Twist after the rain, indicating that the heavy rain has passed, and there are still a few drops of light rain, indicating that the rainy day is coming to an end.

* A bubble, and it's raining heavily. (Hunan)

* A little rain is like a nail, but it won't clear up in the Ming Dynasty; A little rain, like a bubble, fell into the Ming Dynasty.

(It rains on Tian Xing)

* Water drops, bubbles and showers. (Changzhou, Jiangsu)

* Rain lays eggs, which fell to the Ming Dynasty to eat. (Changshu, Jiangsu)

Generally speaking, it must have rained heavily at first. Therefore, in the process of falling, raindrops have become flat spheres, not spheres. Under it, air can be wrapped. If you fall into the river, the air will be picked out of the river and become bubbles. Because this bubble was found in the heavy rain that began to rain, it symbolizes the beginning of heavy rain.

* The rain wheezes and the river overflows. (Han County, Henan Province)

The wheezing sound of rain, the appearance of heavy rain. It rained heavily, so the river was full.

* When it rains at dinner, point four fingers. (Shandong Qixia)

At lunch, the weather is the hottest and the convection is the strongest. There is always a lot of rain, but it is not inevitable.

When it rains, there is nothing. (Hubei)

A cumulonimbus cloud hung empty in the sky, and the rain was only partial, and it was over at once. This kind of Yun Qi is local, so the rainfall will not be too heavy and the rainfall time will be short.

* From drenched Fu Tou to Fu Wei. (Hebei Ningwu Shanxi Songxian Henan)

The dog days are at the turn of July and August in the solar calendar, which is the hottest period of the year. During this period, if the gas layer is stable, thermal convection is impossible, and even if convection occurs, it is impossible to develop to the extent of causing thunderstorms in the sky. Once this situation is caused, it can last for a long time, so that it will not rain for a long time. However, if the atmosphere is humid and unstable, thermal convection will easily occur. There is a thunderstorm today, and there will be one tomorrow. Because under the same unstable air mass, its organizational structure can remain unchanged for many days. So it doesn't rain in such hot weather. If it rains next time, it will probably rain frequently.

* Rain raises dust and starves people to death. (Hebei)

The rain is light, only dust can be sprinkled, the weather is too dry, and people will starve to death in case of drought.

* Warm after frost and cold after snow; (Southern Jiangsu)

* Cold before frost and cold after snow. (Zhenjiang, Jiangsu)

* It's not cold when it snows, but it's cold when it melts. (Nanjing, Taiyuan, Shanxi, Shangqiu, Henan)

Frost and fog are the products of sunny days. Because there is no cloud in the sky, the radiation heat on the ground is strong at night, and the temperature can drop below zero, which makes the water vapor close to the ground directly condense into frost, so it is cold before frosting. Wait until dawn and sunrise, because the sky in Wan Li is cloudless, the sun is very strong, the frost has little moisture, and it doesn't need a lot of heat when it melts, so the weather is quite warm.

Snow falls from the sky. When condensing, the ground temperature is not necessarily very cold. But if snow melts into water, it must absorb a lot of heat (one gram of snow melts into water, which is equivalent to the heat required to raise the temperature of one gram of water from zero to 80 degrees Celsius). This heat is absorbed from the ground air, so the temperature can't rise until the snow melts.

Proverbs about lightning

All thunder and lightning occur in thunderstorm clouds.

* The fire door in the south flash is open, and it rains in the north flash. (Zhejiang)

* It flashed in the south for a thousand years, and it rained in the north. (Zhejiang's "Tianjia Wuxing" on electricity)

* South flash for half a year, before North flash. (Changshu, Jiangsu, Wuxi)

* Lightning is in the southwest, and it will be very hot tomorrow. (Yiwu, Zhejiang, Changshu, Jiangsu, Yuanxi)

* Lightning is in the northwest, and it's raining. (same as above)

* Lightning sunny in the southeast and lightning rain in the northwest. (Yingcheng, Hubei)

* sunny in the south and rainy in the north. (Guangdong)

The lightning mentioned in these words occurs on the cold front, which is called cold front thunderstorm or squall line thunderstorm. The cold front is located in front of the cold air mass from the north and moves from north to south. Seeing the thunder and lightning in the north, it can be seen that the cold air mass will follow the cold front and come from north to south, so it will rain in the north. If you see a lightning strike in the south, it will definitely go south again and never go north again. At this time and place, the dry and clean air mass prevailing in the north is cold at first. However, due to the cloudless sky in Wan Li and strong sunshine, the temperature will rise rapidly, so there is a saying that "the south flash fire door opens".

* Flash east and west, drying trowels and eels. (Zhejiang)

* East Hohoho, West Hohoho, turn to Gampo tomorrow. (Fuzhou, Fujian)

* The lightning was confusing and it didn't rain. (Shaanxi Wushu)

There are generally two kinds of thunderstorms in summer: one is frontal thunderstorm and the other is local geothermal thunderstorm. The former is caused by the updraft on the front, which is banded, wide in scope and long in life; The latter is caused by strong local thermal convection, which is small in scope and short in life. "East flashing and west flashing" is the second thunderstorm phenomenon. We can only watch? /TD & gt；