What is the wind speed per second 13m?

The wind per second 13 meters is a 6-level wind.

Grade 6 wind refers to Beaufort wind with the wind speed of 10.8 ~ 13.8 m/s, also known as strong wind. Grade 6 wind is called strong wind, and the wind speed is 10.8 ~ 13.8 m/s, which is equivalent to 39-49 km/h. The conversion relationship between wind speed and wind power is: wind speed (m/s) =0.835√F, where f is the number of wind grades. Wind speed is the median (integer) of wind grade, which refers to the wind speed equivalent to 10 meter high.

A strong wind of level 6 can go out, but it is not recommended. The wind force of about 6 may cause branches to shake, and wires will whistle under strong winds, which will have a certain impact on pedestrians' umbrellas. High-rise buildings and staggered streets in the city will form a "channel effect", which will not only make the wind direction "changeable", but also increase the wind speed. When going out, it is recommended to take closed means of transportation, such as cars and buses.

Protective measures in windy weather

First of all, knowing the weather forecast information is the first step to avoid risks. Paying close attention to the weather forecast and related alarms in time can help us know the weather situation in advance so as to be prepared. The government and meteorological departments usually issue alarms and provide relevant suggestions and guidance. A full understanding of the weather forecast, including the predicted wind speed, direction and duration, will help us to formulate a reasonable hedging plan.

Secondly, it is very important to choose a suitable shelter. In windy weather, it is a wise choice to stay away from potentially dangerous objects, such as tall buildings, trees and telephone poles. Look for strong buildings or basements as shelters to ensure that they can protect us from wind and flying objects. If there is no suitable shelter, you can look for low-lying areas or high places to avoid the wind and rain.

In addition, it is also very important for those who live in areas susceptible to strong winds to make necessary preparations in advance. Reserve enough non-perishable food, drinking water and medical supplies to ensure self-sufficiency in windy weather. Check and strengthen the building structure, ensure that doors and windows are closed, and trim trees and plants to reduce the risk of damage and flying objects.