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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...