Traditional Culture Encyclopedia - Weather forecast - Basic information of thunder and snow

Basic information of thunder and snow

Last name: Lei Xue

Spelling: Xue Lei

Date of birth: 0 1-0 1

Current address: Chongqing

Origin: Chongqing

Ethnic group: Han nationality

Height: 163cm

Weight: 46 kg

Age: Youth (2 1-35)

Location: Chinese mainland.

Nationality: China.

Language: Mandarin

Extra long: dance, rhythmic gymnastics, violin.

Occupation: All-round artist

Graduate school: Patrick Ku, meteorologist at Columbia College, Mislin University, Southwest University? Marquette expounded the principle of "snow thunder" phenomenon: the principle of snow thunder and summer thunderstorm is the same. If the sun shines on the ground and warm and humid air rises, the atmospheric environment will become unstable. As the air rises, water vapor condenses to produce cloud gas. Due to the chaos of internal airflow, clouds and gases collide violently. This unstable atmospheric environment in winter is an important prerequisite for the occurrence of "thunderstorm".

For example, in August 2009, the "thunderstorm" weather in the southern United States, first of all, because the atmosphere became unstable, appeared the "Lei Yun" phenomenon. As it gradually moved northward, the atmospheric temperature dropped below zero, which formed the coexistence of thunder and snow. Scientists say that lightning is a discharge phenomenon in the atmosphere, which is produced in convective cumulonimbus clouds. There are strong updrafts and downdrafts in the clouds. Due to the air flow in the clouds, the friction between small ice crystals and water droplets and the airflow, the clouds generate charges. Generally, the upper part of the cloud is dominated by positive charges, and the middle and lower parts are dominated by negative charges. Therefore, a potential difference is formed between the upper and lower parts of the cloud. When the potential difference exceeds a certain level, the phenomenon of spark produced by discharge will occur, which is usually called lightning. At the same time, accompanied by a strong sound, that is thunder.

Because of thunder and snow, the atmospheric temperature near the surface is higher than that above, and it can only snow if the temperature is low enough. This is a very delicate situation. When there is a thunderstorm, the snowfall intensity (snowfall per hour) should reach more than five centimeters per hour. There is often heavy snow. According to the investigation of meteorologists, a thunderstorm will accumulate snow15cm on average within the radius of113km. This strange weather phenomenon appears over Georgia and South Carolina in the United States. Although it is somewhat different from the season in Japan, such strange weather is also found in Japan.

The best places to observe thunderstorms are Wolf Road in Colorado and the east coast of Lake Ontario. These two places have become observation points for investigating thunderstorms. In addition, sometimes even thunderstorms occur along the coastline. In most cases, water vapor rises slowly from the hot sea surface and collides with the dry and cold atmosphere above. If the research on thunderstorm weather can continue to develop, the future weather forecast will be more accurate.