Concept in Definition ABC

In the field of meteorology snowfall is known as the phenomenon that causes snow to fall instead of rain. The presence of snow like precipitation has as its main cause the low temperature since it supposes an important level of cold. However, some other issues are also necessary for the snowfall to appear in a traditional way, the main one having to do with the presence of high humidity, which makes it easier for water to turn into snowflakes instead of reaching the Earth's surface in a liquid state. In other words, snow or snowfall occurs mainly when there is a combination of low temperature with high humidity. Other issues such as the wind can also play a role.

Snowfall is obviously a typical feature of Cold climates like those near both poles of the planet. In any case, the climatic changes of recent years have meant that this exclusivity is not such, presenting snowfalls in parts of the planet with temperate climates. In order for snow to form effectively, the temperature of the

environment It must be less than 0 ° since when this barrier is exceeded, the snowflakes that may form melt in the air before touching the surface.

When talking about snowfall, reference is made to the phenomenon that involves the fall of a significant amount of snow, that is to say, not momentary or circumstantial as it can happen with some diffuse precipitations. There are different types of snowfall that, depending on their intensity, range from mild to severe. The latter usually occur especially in spaces not inhabited by humans, for example in forests, mountains, etc. However, in recent times many northern cities have suffered heavier than usual snowfalls, which implies severe complications in the transport, communications, etc. In these cases, it is common for security operations to be deployed. safety to keep the streets and routes free of snow, as well as public activities are suspended. Snow can come in various forms depending on its intensity as well; in some cases the precipitation is weak flakes, in others hail and other ice crystals.

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