The dangers associated with thunderstorms

A storm may be hazardous to a given point, because of the power it produces phenomena and their randomness.

Lightning is the name given to a flashpoint when it affects the soil (or aircraft). This intense electric shock can kill a man or an animal, a tree or calcine cause fires.

The heavy rains accompanying the storms can cause devastating flash floods. An audience of 1 km wide and 10 km in height contains 1 million liters of water. A storm dumped more frequently from 50 to 100 liters of water per square meter in a few hours. In September 1992, 400 to 500 liters of water had fallen on Vaison-la-Romaine.

Hail is a type of precipitation composed of small pieces of ice, which can devastate example in a few minutes a vineyard or an orchard.

The wind blows in a cumulonimbus by violent gusts up to about 140 km / h and frequently change direction. More rarely are created under the cloud base a whirl wind very devastating tornado.

Pilots, even large aircraft, avoid cross cumulonimbus they could be raised several hundred meters, then suddenly folded in what is commonly called the “air holes.”