It snows in Gansu. How high was the temperature before it snowed in Gansu?

Previously, the average minimum temperature in Gansu was around 5℃, and when the strong cold air went south, the temperature could drop to 0℃.

However, on August 17, there was a heavy snow in Luqu, Gansu. It is said that it is because of continuous rainy days that cold air and high altitude combine to form snowfall. The snowfall was a whole month earlier than the local meteorological record.

The location of snowfall is located on the mountainside of Qilian Mountain, and the elevation of the whole town is between 2200 and 2800 meters. The mountainside is the most prone to snowfall, and the water vapor in the air in the plain below the mountain rises continuously due to the airflow, forming a snowfall cloud system on the mountainside.

This area is controlled by Siberian cold air most of the time. In other words, the spring breeze is not enough to pass Yumen Pass, which is the influence of climate. When the Indian Ocean warm and humid airflow passes through the Qinghai-Tibet Plateau and directly enters the left wing of Siberian cold air, the potential energy of Siberian cold air is greatly reduced, and precipitation will form in Qilian Mountain at this time. At this time, it depends on the potential energy of Siberian cold air. If the potential energy of Siberian cold air is weak, precipitation will form. If the potential energy of Siberian cold air is very strong, it will quickly digest the potential energy and heat energy of warm and humid airflow in the Indian Ocean, and change from precipitation to snowfall.

In a word, snow is a natural phenomenon. The water vapor in the air condenses and then falls to the ground again. Water is the foundation of all kinds of life on the earth, and its changes and movements have created our world today.

On the earth, water is constantly circulating. The water in the ocean and on the ground is heated and evaporated into the sky. The water vapor moves to other places with the wind. When they encounter cold air, they form precipitation and return to the earth's surface.

In 2020, floods spread all over the country. The flood fighting is not over yet, and it snows again. This year is really different. We have experienced too much from epidemic prevention to flood fighting, but then again, the snow came a little too suddenly. Locals must remember to keep warm.