cold front


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cold front

Meteorol
1. the boundary line between a warm air mass and the cold air pushing it from beneath and behind as it moves
2. the line on the earth's surface where the cold front meets it

cold front

[′kōld ‚frənt]
(meteorology)
Any nonoccluded front, or portion thereof, that moves so that the colder air replaces the warmer air; the leading edge of a relatively cold air mass.

cold front

cold frontclick for a larger image
A front along which cold air replaces warm air by undercutting it. A cold front is the advancing or leading edge of a steep cold wedge of air. A cold front is characterized by cumulus (Cu) and cumulonimbus (Cb) clouds with frequent precipitation in the form of heavy showers.
References in periodicals archive ?
Now take a cold front, advancing across the bed from west to east like a wedge.
Asked whether the cold front in Hawaii was unexpected, the spokesperson said: "No, the cold front was always there.
One of the strongest cold fronts to hit Japan this winter brought snow Monday to parts of the Pacific coast, in addition to wide areas facing the Sea of Japan.
Alvarado (2004) informed that from the 15th to the 20th of April 2004, there was a sudden descent in temperature as a result of the trade winds and the passage of a cold front on April 15th.
BEIRUT: Fire wiped out more than 300 dunums of orchards and trees in Mount Lebanon and South Lebanon, as a cold front is expected to bring snow at high altitudes.
Once the cold front passes, it will begin to get warmer, but the shamaal winds would continue, though not with so much severity.
2010, in press) observed and reported the impact of a cold front ("friagem") in May 2006 in lake Catalao located at the confluence of the Negro river and Solimoes river in front of the city of Manaus (3[degrees]10'04"S and 59[degrees]54'45"W).
lt;p>The Erzurum Meteorology Bureau said temperatures had suddenly decreased in the region after snow disappeared and a cold front moved in from Siberia.
The obvious effect of a cold front is the temperature change.
A cold front is set to move slowly southwards during Monday and Tuesday and this could bring significant snowfall to some areas, particularly over the hills.
The cold front will bring with it heavy rain, hail and sleet as well as snow on higher ground.
The whole of the UK can expect to see snow and sub-zero temperatures as a cold front coming in from the Arctic hits.