How is a cold front formed?

Answer 1

cold air blowing from the north

Answer 2

A cold front is a place where a cold air mass replaces a warm air mass.
These different air masses do not mix because they have different temperatures and densities.
As the cold front develops the warm air behind the front is pushed up over the top of the cold air. This happens because of the warm air being lighter than the cold air.
This is often associated with formation of clouds which are nothing but masses of cool condensed air.

Answer 3

Basically what happens is the natural north-south gradient of temperature (with warm to the south and cool to the north) becomes compressed together through a process called deformation. Deformation is just the way the wind field "deforms" the temperature gradient. Deformation can be achieved by the axis of an upper level trough, where you will have winds from the north suddenly switching to the south, causing a lot of shear (or change in wind speed and direction) and deforming the temperature gradient so that the isotherms (lines of equal temperature) become packed, forming a tight gradient.

Simply put...winds force the usual temperature gradient to become stronger by forcing the air masses together.

Hope this helped!

Answer 4

The hot air rises and what is left is cold air. It travel and is known as a front. That makes it colder closer to the planet. This is a change in the weather.

Answer 5

Damn.
You never saw the tooth paste commercial?
Some white guy with a snow board brushes his teeth.
When he exhales its cold!!!!!!!!!!!!!!!!!!!!
On the real n igga