What is thunder?

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What storm?Determination of its power - the most important task for today's weather forecasters.All you need to know about the storm for children and adults, including on how to avoid the adverse effects of this phenomenon, explains later in the article.

What is thunder and lightning?

first - it is certainly atmospheric phenomenon.And the second - one of its manifestations.All that is due to sudden weather changes depends on the air flow.Heat rises and cold moves downward.In the presence of air in sufficient moisture at a certain height above the ground to form clouds.Recent come in several forms.Since thunderstorms are mainly associated cumulonimbus clouds.Generally storms can be divided into two subtypes: the front (large-scale) and vnutrimassovye (local).The first is very rare.

thunderstorm usually accompanied by squally wind gusts and heavy precipitation in the form of rain or hail.The latter is due to the fact that storm cloud is large and structurally uniform.At the bottom it consists of water droplets, and the top of the grains have snow and ice.Wherein the lower limit may be at a height of five hundred meters or more above the ground.The upper edge of the cloud and reach seven kilometers.Various largest grains in the cloud are constantly faced with each other and therefore become electrically charged.Small raised top, and larger and heavier fall down.First carry a positive charge, while the latter is negative.Lightning occurs in two ways - as a discharge between two differently charged clouds or between a cloud and the earth's surface.

Thunder is inextricably linked to the storm.Definition of it can be given as follows.Thunder - is the sound vibrations in the air resulting from the heat after passing through the atmosphere lightning.Waves typically reflected from objects on the ground and by clouds.Since light speed much faster than the sound of thunder is heard, we usually after a flash of lightning.And just in case the storm is directly over the observer, these two phenomena appear almost simultaneously.And if you have a good idea what a storm, determine the distance to it - no small task.After all, it can give you time to find shelter.Sound travels at a speed of about 340 meters per second.So when you see lightning, start to measure time.Then, the number of seconds, divide by three.You will get the approximate distance in kilometers.

Related adverse events

So once again that such a storm.The definition we have given her.Usually, however, it is not just a flash of lightning and a deafening roar.By the way, the power of the latter speaks of the power of atmospheric phenomena.As mentioned above, usually accompanied by a strong storm, but intermittent rain or hail.The size of grains

latter also speaks about the power of a thunderstorm.Furthermore, it is increasing wind.In some cases, a tornado may be generated.But for the last temperate latitudes, of course, a rarity.Fires can occur from lightning strikes a tree or other objects.In general, it is a real storm.

For the youngest

Everyone knows that kids are afraid of the sound of thunder and flashes of lightning.And so it is very important not only from the point of view of psychology, but also for safety during this phenomenon to monitor the children.Many of them are so curious that they ask seniors about what a thunderstorm.For children important skills, so tell your child about this weather phenomenon: why it occurs and what is dangerous, what to do during a thunderstorm.

How to protect yourself?

Here are a few simple rules.If you are at home, do not come to the windows.Do not include appliances, unplug the external antenna.Avoid using wired telephones.Close all windows and doors.And if you have a home oven, and the hood too.Do not go out unnecessarily.

If the storm caught you on the street, move away from tall objects, especially trees.Do not shelter in barns and sheds.Stay away from metal structures.If you swim in the river or the sea, immediately leave the water.Sailing boat - Pester to shore.In the forest is better to take refuge in a thicket among the small trees.And if you came under a storm in the field, get some low place and sit down, covering his head with his hands.Any metal objects should be postponed for a few meters away.The car is better to stop away from tall trees.Then you need to close all the windows and lower the external antenna.

So, in the article, we talked about what a storm, the definition of this phenomenon also has been given.It is very unfavorable for the person, and it is better not to get into a thunderstorm.