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What is Cold Front?

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden drops in temperature, thunderstorms, and heavy rain as the colder air forces the warmer air upward.

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Glossary

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The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Snow that rises to 8 feet or higher.

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Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

A very cold high pressure that originates over the Arctic Ocean.

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...