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en.wikipedia.org/wiki/Weather_front

A weather (state of atmosphere) front is a boundary separating two masses of air of different ... Fronts separate air masses of different types or origins, and are located ... Cold fronts can produce sharper changes in weather and move up to twice ... or devolve into shear lines, but they can transform into a cold or warm front if ...

en.wikipedia.org/wiki/Air_mass

In meteorology, an air mass is a volume of air defined by its temperature and water vapor ... Colder air masses are termed polar or arctic, while warmer air masses are ... of tropical air produced by the subtropical ridge over large areas of land and ... of air in their wake, cold fronts and cold occlusions move faster than warm ...

en.wikipedia.org/wiki/Cold_front

A cold front is defined as the leading edge of a cooler mass of air, replacing at ground level a ... A cold front's location is at the leading edge of the temperature drop off, ... Some of these cumulus clouds may produce showers ahead of the front. .... Cold fronts form when a cooler air mass moves into an area of warmer air in ...

www.answers.com/Q/When_a_cold_air_mass_moves_into_an_area_where_a_warm_air_mass_is_located_it_is_called_a

a cold front. ... When a cold air mass moves into an area where a warm air mass is located it is called a? When a cold air mass moves into an area where a warm  ...

www.answers.com/Q/What_is_produced_when_a_warm_air_mass_moves_into_an_area_where_a_cold_air_mass_is_located

warm frontCOLD FRONT ______GIGGLES. ... What is produced when a warm air mass moves into an area where a cold air mass is located? What is produced ...

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

Aug 9, 2013 ... A front describes the boundary between two air masses containing different temperature and/or ... Figure A: Fronts Located on a Surface Weather Map ... A warm front is the surface boundary between a warm air mass and a cold air mass it is overtaking. The warm air moves into an area of colder, drier air.

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

Fronts are zones of transition between two different air masses. ... If the wedge is moving into an area of warmer air, the front is called a cold front. ... Cold fronts tend to move faster than all other types of fronts. ... sector" of the cyclone rise up and over the cooler, more dense air at the surface located north of the warm front.

www.met.tamu.edu/class/atmo202/Dir-surface/surface-stu.html

Continental Arctic (cA): This air mass is characterized by extremely cold ... As shown by the image, they move southward across Canada and occasionally move into the ... they usually produce clouds and precipitation as they move inland and are ... when a low pressure mid- latitude cyclone is located south of the area.

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

A warm front is defined as the transition zone where a warm air mass is ... Warm fronts generally move from southwest to northeast and the air behind a warm front is ... distance is a good indication that a front is located somewhere in between.

www.climateandweather.net/world-weather/weather-fronts.html

A cold weather front is defined as the changeover region where a cold air mass ... a short distance is a good indicator that a front is located somewhere in between. ... Warm fronts usually move from southwest to northeast and the air behind a ...