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What is Precipitation?

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

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Glossary

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

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

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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