Dark blue cloudy sky

What is Blizzard?

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant falling and/or blowing snow that reduces visibility to less than 1/4 mile.

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Glossary

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

A cloud of irregular appearance, composed of irregular cloud fragments.

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.