A blizzard is a severe snowstorm with strong winds and low visibility. The National Weather Service defines a blizzard as a storm with sustained or frequent winds of 35 miles per hour or more, and considerable falling or blowing snow that reduces visibility to 1/4 mile or less for at least 3 hours.
Blizzards typically form when cold, dry air from the north or west meets warm, moist air from the south. As the warm and cold air masses collide, the warm air is forced to rise, creating a low-pressure system. This can lead to the formation of snow clouds and heavy snowfall, combined with strong winds.
Blizzards can pose several dangers, including:
To stay safe during a blizzard, it is important to:
Blizzards are powerful winter storms that can have significant impacts on communities. Understanding the science behind blizzards and knowing how to stay safe during these storms is important for everyone, especially those living in regions prone to severe winter weather.