Weather characteristics after a week of lightning and snowfall

A week after the thunderstorm, the weather is characterized by abnormal temperature and possible heavy snow.

Thunderstorm, also known as thunder and winter, refers to the weather phenomenon of thunder or thunder when it snows in a certain area in winter. This kind of weather is rare, and the folk proverb says "it thunders and snows in winter", which is a precursor to a snowstorm.

The main reason of "thunderstorm, rain and snow" is that the warm and humid airflow was strong before, and the cold air came down to produce strong convective weather, which triggered lightning activity. Since the winter of 2009, thunder and rain have occurred in many cities in China. The ancients classified thunder in solar terms as spring thunder.

However, there is no in-depth study on thunder in snowy days, because it is a very unlikely event in the history of meteorology, and it is really difficult to predict it in advance without enough information and data to analyze it.

In some areas, there will be weather conditions after thunderstorms.

On the morning of February 19, 2065438, there was thunderstorm and snow in Shanghai, and there were different degrees of yellow crowded sections on the subway lines 1, 3, 5, 6 and 8, and four subway lines were restricted. Nearly 30 flights at Hongqiao Airport were affected. Pudong Airport started early this morning, and more than ten flights were affected.

Two flights to Beijing, Nanjing, Kunming and Guangzhou were affected. As of 8: 30 am, more than 50 flights were affected at two major airports in Shanghai, and flight 14 was cancelled. ?

From the morning of 19, the snowfall in Shanghai began to increase, and there was a rare phenomenon of "more thunder and less rain", and snowfall generally appeared in the city. Around 7 o'clock, it was the peak of the first day of school for primary and secondary school students, and it snowed heavily. The education department has made it clear that students cannot arrive at school on time that day and will not be treated as late. The meteorological station updated the warning of blizzard and road icing.