Snow Storms!

Winter Storms derive their energy from the clash of two air masses of different temperatures and moisture levels!Winter or snow storms usually form when an air mass of cold, dry,Canadian air moves south and collides with a warm air moving north from the Gulf of Mexico.

Snow storms occur mostly in areas with very low temperatures where the rate of heavy snowfall is very high!Snow storms are common in areas where there is a mass of very cold air headed in the southern direction of the polar region.Snow storms can last for days.The longest snow storm in the world is in Antarctica and the snow there never stops!!There are many different types of snow storms. Some types of snow storms are snow squalls, Blowing snow, Nor'easters, Blizzards, Ice storms, Sleet, and freezing rain!

One very severe type of snowstorm is called a blizzard with winds excess of 35 mph and visibility of less than a quarter mile for more than 3 hours!Blizzards can also occur after snowfall when high winds cause whiteouts or fallen snow blown around and snowdrifts,which decrease visibility.The first blizzard to be declared a Federal Emergency was in 1977,affecting upstate New York and Southern Ohio.

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