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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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...