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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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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