What is blizzard? How is snowstorm formed?

Blizzard is a phenomenon characterized by strong winds of at least 56km / h and lasts for a long time - usually three hours or more. The phenomenon of blizzard is always accompanied by snow, strong wind with speed jerks up to 200km / h, can lower the temperature near -50 ° C.

what?

Blizzard is an extremely dangerous disaster.

Blizzard has two slightly different meanings. According to a definition, snow storm conditions can occur without snow falling. Another common sense of snowstorm is a cold winter, a heavy snowfall, often associated with strong blowing winds and snow drifts. This is an extremely dangerous disaster.

Impact of snowstorm

Blizzards cause traffic jams, houses and light structures that cannot withstand the weight of collapsed snow. Moreover, visitors climbing mountains also suffer from avalanche accidents.

A severe blizzard has winds of over 72km / h, and temperatures of -12 ° C (10 ° F) or lower. In Antarctica, blizzards are combined with spills on the edges of the rock plateau at an average speed of 160km (about 100 miles) per hour.

The process of snow storm formation

The condition for a snow storm to form is a warm air flow above the cold air, which creates extreme cold winds and rain.

Blizzard occurs if the temperature is below zero toxic C on the ground and between clouds, there is enough moisture in the air to allow clouds and snow to form.

According to the US National Meteorological Agency, snowstorms last for at least 3 hours with winds of 56km / h and snowfall, making the view fall below 400m.

The process of snow storm formation.

1. What is a storm? How storms form and why do storms occur?