A transition zone in the atmosphere where an advancing cold air mass displaces a warm air mass.

The leading edge of a relatively cold air mass which displaces warmer air, causing it to rise. If the lifted air contains enough moisture, cloudiness, precipitation and even thunderstorms may result. [..]

A zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.

The leading edge of a relatively cold air mass that displaces warmer air. The heavier cold air may cause some of the warm air to be lifted. If the lifted air contains enough moisture, the result may be cloudiness, precipitation, and thunderstorms. If both air masses are dry, no clouds may form. Following the passage of a cold front in the Northern [..]

The leading edge of a cold air mass.

interaction between two air masses, where the cool, dense mass is replacing the warm one.

the boundary between a warm and a cold air mass where the cold mass is undercutting the warm, causing the latter to rise. The rate of rise tends to be rapid causing rapid cooling and condensation whic [..]

A moving boundary of cooler air displacing warmer air. coleoptile

A weather condition accompanied by high, clear skies, and a sudden drop in temperature.

A narrow transition zone separating advancing colder air from retreating warmer air. The air behind a cold front is cooler and typically drier than the air it is replacing.

The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, when a cold front passes the temperature and humidity decrease, the pressure [..]

The leading edge of a relatively cold air mass that moves so that the colder air replaces the warmer air. Cold frontal passages can result in wind-blown dust events, precipitation, and drop in tempera [..]

The leading edge of a colder mass of air that displaces a warmer mass of air.

Used in meteorology to describe a mass of cold air moving toward a mass of warm air. Strong winds and rain typically accompany a cold front.

Used in meteorology to describe a mass of cold air moving toward a mass of warm air. Strong winds and rain typically accompany a cold front.

Used in meteorology to describe a mass of cold air moving toward a mass of warm air. Strong winds and rain typically accompany a cold front.

The leading edge of a relatively colder airmass which separates two air masses in which the gradients of temperature and moisture are maximized. In the northern hemisphere winds ahead of the front will be typically southwest and shift into the northwest with frontal passage.

A zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.

The leading edge of a cold air mass. It's called a front because all of the cooler air mass is behind it. Cold fronts usually start near the North Pole or South Pole and then keep moving until th [..]

Any non-occluded front which moves in such a way that colder air replaces warmer air.

A zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.

A zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer. definition courtesy of: NWS

The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the pressure rises, and the wind shifts (usually from the southwest to the northwest in the Northern Hemisphere). Precipitation is generally at and/or beh [..]

The transition zone where a colder air mass overtakes and replaces a warmer air mass. Cut-Off Low

A moving boundary that separates cooler air from warmer air. A cold front is named as such because the cold air is advancing on the warm air.On satellite imagery, cold fronts are generally clearly marked cloud bands up to several hundred kilometres wide. Preceding the front, winds normally tend north or northwesterly, often leading to warmer temper [..]

A transition zone where a cold air mass advances and replaces a warm air mass.

The boundary between two different air masses where the cold air pushes the warm air out of way and brings colder weather.

The boundary where a cold airmass pushes into a warmer airmass.

A narrow zone of transition between relatively cold, dense air that is advancing and relatively warm, less dense air that is retreating.

A narrow transition zone separating advancing colder air

The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the [..]

A narrow transition zone separating advancing colder air from retreating warmer air. The air behind a cold front is cooler and typically drier than the air it is replacing. Cooling Degree Day

The leading edge of an advancing cold air mass that is underrunning and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the p [..]

The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the [..]

The leading edge of an advancing cold air mass

A cold front is the leading edge of colder air. In front of it, you usually have warmer, more humid air. Behind the front lies much cooler or colder and drier air. The cause for cold fronts is colder air masses migrating southward from the polar regions. It is part of the world's natural energy circulation or cycle, this is how the earth " [..]

A zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.

A warm-cold air boundary with the cold air advancing.

The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, with the passage of a cold front, the temperature and humidity decrease, the pressure rises, and the wind shifts (usually from the southwest to the northwest in the Northern Hemisphere). Precipitation is generally at and/or beh [..]

(meteorology) A cold front is the leading edge of an advancing mass of cold air.