A blizzard requires three things to form: temperatures below freezing at ground level and in the clouds to allow snow to form, enough moisture to allow clouds and eventually snow to form, and a mass of warm air rising over a mass of cold air that creates strong winds. Bizzards are typically formed when a high-pressure system meets a low-pressure system.Continue Reading
Not every severe snowstorm is considered a blizzard, and in fact, a blizzard doesn't even need to involve much snow. The National Weather Service has a set of three criteria that must be met for a storm to be considered a blizzard. First, there needs to be blowing or falling snow that results in a reduction of visibility to less than one-quarter of a mile. Second, the storm needs to produce sustained winds or frequent wind gusts in excess of 35 mph, and finally, the previous two conditions need to continue for at least three hours.
Many blizzards do not involve heavy or wet snow but instead very light snow, which has quite minimal water content and easily is blown around by the wind. Even though the East Coast of the United States typically gets more snow, blizzards are much more common in the northern Midwest due to the high wind factor in that area.Learn more about Storms
A blizzard's strong winds can knock down trees, power lines and utility poles. Coastal storms can cause flooding and beach erosion. Blizzards occurring in the west may produce damage to roofs and other structures due to high winds gusting to 100 mph, or more, off mountaintops.Full Answer >
Blizzards are winter storms characterized by blowing snow, less than quarter of a mile of visibility outdoors and strong winds moving 35 mph or faster, according to the National Weather Service. The word "blizzard" once referenced a powerful cannon or musket shot, but in the 1870s, an Iowa newspaper coined the term for a snowstorm.Full Answer >
The weight of the fallen snow during a blizzard may collapse roofs or bring down trees, power lines or telephone lines. The snow also may result in dangerous driving and whiteout conditions, leading motorists to get into accidents or to become lost or stranded. Blizzards may bring extremely cold temperatures, which increase the risk of frostbite. Cold temperatures can also cause water pipes to freeze.Full Answer >
Meteorologists track and predict weather conditions using state-of-the-art computer analysis equipment that provides them with current information about atmospheric conditions, wind currents, temperatures, precipitation and more. The information collected is used to create different possible scenarios or models. These are used as the basis for most weather predictions.Full Answer >