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cold front
[ kohld fruhnt ]
noun
- the zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.
cold front
noun
- the boundary line between a warm air mass and the cold air pushing it from beneath and behind as it moves
- the line on the earth's surface where the cold front meets it
cold front
- The forward edge of an advancing mass of cold air that pushes under a mass of warm air. Cold fronts often cause precipitation; water vapor in the rising warm air condenses and forms clouds, often resulting in heavy rain, thunderstorms, hail, or snow. Winter cold fronts can cause temperatures to drop significantly. Summer cold fronts reduce humidity as drier, cooler air displaces the humid, warmer air. On a weather map, a cold front is depicted as a blue line with triangles that point in the direction in which the cold air is moving.
- Compare occluded frontSee illustration at front
Word History and Origins
Origin of cold front1
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Example Sentences
In the mountains, a few inches of snow could fall at elevations above 5,000 feet as the cold front moves through.
Don’t be fooled by the weekend’s warm temperatures, you’ll need your rain jacket again as forecasters are predicting an incoming cold front with moderate to heavy rains in Southern California.
The first storm is expected to move through the area Wednesday into Thursday, with the next cold front coming Thursday.
The upcoming cold front is but the latest example of weather whiplash the Southland has been experiencing this winter.
A weakening cold front will zip through Los Angeles County on Christmas Eve, bringing a light smattering of rain in the afternoon, but clearing out by the evening.
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