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.

Glossary

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

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

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

An instrument for measuring atmospheric pressure.

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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

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