Why are there thunderstorms and strong winds after the earthquake?

The reason is that in the hot summer, the air temperature near the ground rises sharply, and the force of warm and humid air is particularly strong under the influence of favorable weather system. Especially when the horizontal airflow is blocked by mountains and highlands, on the one hand, the warm and humid airflow rises along the hillside due to the strong uplift of the terrain; On the other hand, mountains have a heating effect on the air near the ground, which makes the air expand and rise, and it is easy to form thunderstorm clouds. Therefore, there are strong updrafts and downdrafts in thunderstorm clouds.

When the cold air sinking from the thunderstorm cloud reaches near the ground, it will quickly spread around and form a cold air pile. Due to the high density of sinking cold air, the air pressure of cold air stack rises rapidly, forming cold high pressure, which is called thunderstorm high pressure. In this way, there is a big pressure difference in a small area, so the wind blows. When the wind pours from the thunderstorm high pressure center to the surrounding ground, the speed will suddenly increase, generally reaching more than ten meters per second, and sometimes reaching more than 30 meters per second.

After the gust, the thunderstorm came soon, followed by a low pressure that could produce precipitation, and then the thunderstorm appeared immediately. So there is often a strong wind before a thunderstorm.

However, not all thunderstorms are preceded by strong winds. Sometimes strong winds and thunderstorms strike at the same time; Sometimes the thunderstorm clouds all over the sky only thunder and don't blow hard. This is because for a thunderstorm weather, there are exceptions because of the specific time, place and conditions of thunderstorm formation and some of its own characteristics.

Extended data:

Matters needing attention

1, to avoid incidental disasters, especially fire, so all fire sources, including power supply and gas, should be turned off urgently.

2. It is convenient to open doors and windows, so as to avoid being unable to escape due to earthquake deformation.

3. Find a safe shelter on the spot: never run in a hurry. If you are indoors, immediately stay away from shelves and cabinets, turn your back to the window and hide under a solid table. Don't take the elevator.

If you are in the suburbs, find an empty place, away from cliffs, water and cars.

5. If you are in the street, quickly hide beside the pillars of the arcade, away from glass, gas stations, construction sites and overpasses, and pay attention to protecting your head.

6. Evacuate on foot: If there is a need for refuge, such as frequent aftershocks, be sure to walk to the refuge, and never drive, so as not to hinder emergency rescue.

7. Mutual assistance: Earthquakes can easily lead to fires. If you find any disaster, you should ask for help urgently and do your best to help the rescue. But don't watch the excitement and hinder the rescue activities.

8. If you are unfortunately trapped, you must stay awake and calm, beat the utensils instead of shouting, and never give up the will to survive.

9. In an earthquake, you should hide under solid furniture, and the bathroom is also a safe place.

10, remember the phone numbers of hospitals, police stations and fire brigades near your home.