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en.wikipedia.org/wiki/Cold_front

If the cold front is highly unstable, cumulonimbus clouds producing thunderstorms commonly form along the front. Anvil cirrus clouds may ...

ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/af/frnts/cfrnt/def.rxml

A cold front is defined as the transition zone where a cold air mass is replacing a warmer air mass. Cold fronts generally move from northwest to southeast.

www.windows2universe.org/earth/Atmosphere/clouds/formation_fronts.html

May 21, 2009 ... Warm fronts produce clouds when warm air replaces cold air by sliding ... An altostratus cloud usually covers the whole sky and has a gray or ...

sciencing.com/clouds-associated-cold-front-8660614.html

Apr 24, 2017 ... Cumulonimbus clouds in a cold front bring rainy weather. A cold front is a ... They are usually located at elevations of 39,000 feet and higher.

www.weatherworksinc.com/warm-cold-fronts

May 26, 2017 ... Or: “showers and thunderstorms will occur today as a cold front slides through the region.” Usually, when a front approaches, cloudy skies alo.

www.ecoca.ro/meteo/tutorial/Weather/Older/Cold_Fronts.html

The air associated with a cold front is usually unstable and conducive to cumulonimbus cloud formation. Because the upthrust is delivered along a boundary ...

climate.ncsu.edu/edu/k12/.fronts

Aug 9, 2013 ... Cold fronts are usually accompanied with areas of low pressure. ... Along some stationary fronts, the weather is clear to partly cloudy. If both of ...

okfirst.mesonet.org/train/meteorology/Fronts.html

Cold fronts usually bring cooler weather, clearing skies, and a sharp change in wind ... Clouds and precipitation are quite prevalent to the north of the warm front.

www.ecn.ac.uk/what-we-do/education/tutorials-weather-climate/weather-air-masses/fronts/cold-fronts

You often see clouds forming at a cold front. This is because as ... We said before that the air temperatures ahead of the cold front are usually warmer than the ...