Cold front

A cold front is a meteorological word describing the movement of a cooler air mass into an area of warmer air.[1] The air with greater density moves und…

Cold front
Cold front interaction with the warmer air.
Cold front symbol: a blue line with triangles pointing in its movement direction.

A cold front is a meteorological word describing the movement of a cooler air mass into an area of warmer air.[1] The air with greater density moves under the less dense warmer air, lifting it, which can create a line of showers and thunderstorms, or a squall line to form when there is sufficient moisture. This upward motion causes lowered pressure along the cold front.

On weather maps, the surface position of the cold front is marked with the symbol of a blue line of triangles or spikes pointing in the direction of its movement. Cold fronts can also move up to twice as fast as warm fronts.

Precipitation

Rain, snow, hail, and other forms of precipitation can happen with cold fronts.[2]

Effects

Cold fronts can bring dry and colder air behind it.[3] Temperatures can drop to 15 °F behind cold fronts, and it can get very windy.

References

  1. ↑ University of Illinois. Cold Front. Retrieved on 2006-10-22.
  2. ↑ "Cold Fronts METEO 3: Introductory Meteorology". Archived from the original on 10 June 2025. Retrieved 11 August 2024.
  3. ↑ "Cold Front: transition zone from warm air to cold air". Retrieved 11 August 2024.


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