How big is the magnitude 8 thunderstorm and gale?

In thunderstorm weather with wind speed 17.2 to 20.4m/s, there will be hundreds of lightning and thunder in a short time.

Thunderstorms of magnitude 8 are mainly strong convective weather such as short-term heavy precipitation and local small hail, and there may be hundreds of lightning in a short time. The 8-level gale broke branches, the 9-level roof tiles flew, the 10-level trees were pulled down, and the 8- 10-level thunderstorm and gale were serious disasters. Judging from the disastrous weather, the instantaneous wind speed reaches 17.2 to 20.4 m/s.

Thunderstorm and cold wind are "two passers-by". Cold air and strong winds are usually brought by the invasion of cold air in the north or northwest, which leads to a wide range of cooling weather. Thunderstorm and gale is a kind of strong convective weather, which often appears in strong storms or strip convection related to squall line strong front, and is a divergent gust formed by airflow sinking.

Countermeasures against Thunderstorm and Gale

1, when it thunders, the first thing to do is to close the doors and windows to prevent lightning from hitting the room directly and spherical lightning from floating into the room.

2. In thunderstorm weather, stay away from metal water pipes and sewer pipes connected to the roof indoors.

3. In thunderstorm weather, try not to make or answer the phone, and don't use your mobile phone to surf the Internet. Unplug the power supply, telephone line, TV antenna and other metal wires that may introduce lightning.

4. Don't pull the wire for drying clothes and bedding to the window or door to prevent the wire from thundering.

5. Don't stay away from pavilions, huts and houses in the rain for a long time, pay attention to avoid wires, don't stand under light bulbs, and it is best to cut off power or use electrical appliances.