What is Cold front?
[[File:Front froid.svg|thumb|Cold front interaction with the warmer air.]] [[File:Cold front symbol.svg|thumb|Cold front symbol: a blue line with triangles pointing in its movement direction.]] A '''cold front''' is a [[meteorology|meteorological]] word that is used to describe the movement of a cooler [[air mass]] into an area of warmer air.<ref>University of Illinois. [http://ww2010.atmos.uiuc.edu/(Gl)/guides/mtr/af/frnts/cfrnt/def.rxml Cold Front.] Retrieved on 2006-10-22.</ref> The air with greater density moves under the less dense warmer air, lifting it, which can cause a line of [[shower]]s and [[thunderstorm]]s, or a [[squall line]] to form when there is sufficient moisture. This upward motion causes lowered pressure along the cold front. On [[weather map]]s, the surface position of the cold front is marked with the symbol of a blue line of triangles/spikes pointing in the direction of its movement. Cold fronts can also move up to twice as fast as [[warm front]]s. == Precipitation == Rain, snow, hail, and other forms of precipitation can happen with cold fronts.<ref>{{cite web |title=Cold Fronts METEO 3: Introductory Meteorology |url=https://www.e-education.psu.edu/meteo3/l7_p5.html |accessdate=11 August 2024}}</ref> == Effects == Cold fronts can bring dry and colder air behind it.<ref>{{cite web |title=Cold Front: transition zone from warm air to cold air |url=http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/af/frnts/cfrnt/def.rxml |accessdate=11 August 2024}}</ref> Temperatures can drop 15 °F behind cold fronts, and it can get very windy. == Notes == {{reflist}} {{Wind}} [[Category:Meteorology]] [[Category:Cold]]