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 weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A large body of air having similar horizontal temperature and moisture characteristics.

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...