What happens in a cold front?

Answer

A cold front refers to the transition zone where a cold air mass is replacing a warmer air mass. Cold fronts usually move from northwest to southeast which may cause a decrease in temperatures to more than 15 degrees within an hour.
Q&A Related to "What happens in a cold front?"
When a cold front is forecast for your area, it means that several things are happening prior to the cold front passing through. The winds will be moving from the south to the southwest
http://www.ehow.com/info_8483837_characteristics-c...
A cold front stays on the ground, while the warm air mass rises to the sky and condenses into clouds.
http://wiki.answers.com/Q/What_does_a_cold_front_d...
"Hot air rises" therefore the air behind a warm front is lighter than air ahead of it and lighter than that air behind a cold front.
http://wiki.answers.com/Q/What_is_heavier_a_warm_f...
Cold fronts contribute to the formulation of cumulonimbus, or thunderstorm clouds, which are greater, more extreme versions of cumulus clouds. These dense clouds can tower up to 50,000
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2 Additional Answers
Ask.com Answer for: what is a cold front
cold front
NOUN
1.
the zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.
Source: Dictionary.com
A cold front is a term meteorologists use when a pattern of cold air is coming into the area. The front comes in for a few days before it moves out.
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