COLDFRONT

Cold front

A cold front is defined as the leading edge of a cooler mass of air, replacing a warmer mass of air, which lies within a fairly sharp surface trough of low pressure. It forms in the wake of an extratropical cyclone, at the leading edge of its cold air advection pattern, which is also known as the cyclone's dry conveyor belt circulation. Temperature changes across the boundary can be as much as . When enough moisture is present, rain can occur along the boundary. If there is significant instability along the boundary, a narrow line of thunderstorms can form along the frontal zone. If instability is less, a broad shield of rain can move in behind the front, which ...

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cold front

Noun

  1. A cold front is the leading edge of an advancing mass of cold air.


The above text is a snippet from Wiktionary: cold front
and as such is available under the Creative Commons Attribution/Share-Alike License.

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