a transition zone between a mass of warm air and the colder air it is replacing.
Wild Weather Words You Need To KnowPeople talk about the weather all the time. And so, we present this list of weather words we think you need to know to join the conversation.
Origins and Uses of 8 Common Sign-OffsRead more in this article about some frequently asked questions and fun facts related to our definitions.
- warm as toast,
- warm heart,
- warm over,
- warm sector,
- warm spot,
- warm spring
Origin of warm front
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
The forward edge of an advancing mass of warm air that rises over and replaces a retreating mass of cooler air. As it rises, the warm air cools and the water vapor in it condenses, usually forming steady rain, sleet, or snow. On a weather map, a warm front is depicted as a red line with half circles whose curved sides point in the direction in which the warm air is moving. Compare cold front occluded front. See illustration at front.
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