Cold Front


Diagram of a cold front. This front is moving in the direction of the triangles (right to left on the diagram)

Diagram of a cold front. This front is moving right to left in the diagram (the direction of the triangles).

Definition

A cold front is the boundary of an advancing mass of cold air. These are shown on weather maps by a line with triangles -often coloured in blue.

Characteristics of a Cold Front

Cold air advances in the direction of the triangles. Because cold air is more dense than warmer air, it is “Heavier” and so pushes underneath the warmer air.

As the warm air cools down, it forms clouds, which will likely be followed by precipitation. This is why cold fronts are characterized by deep storm clouds and heavy rain.

If the conditions are cold enough, this could result in other forms of precipitation such as snow.

Beast From the East

As the Cold Front advances, cold aid is pushed underneath the warmer air, which cools, forms clouds, and is likely to precipitate (as rain or snow etc).

As the Cold Front advances, cold air is pushed underneath the warmer air, which cools, forms clouds, and is likely to precipitate (as rain or snow etc).

The weather system dubbed the “Beast From the East” that hit the UK in March 2018 was caused due to a significant cold front sweeping in from the East. Combined with storm Emma, this brought about a significant snowfall and low temperatures across large parts of the UK. This air will have traveled over the Siberian deserts.

Deserts are always hot, Right?

Deserts are often associated with dry, hot conditions. However, over winter, the temperature in parts of the Siberian desert drop to below -20oC.

There is talk of another Easterly cold front reaching the UK towards the end of March 2018 also, which may well bring similar conditions.

 


Beast from the East brings enough snow for skiing in Edinburgh City Centre

Beast from the East Means Skiing in Edinburgh City Centre

Did you get out into the recent snow? Where did you go?


Leave a Reply

Your e-mail address will not be published. Required fields are marked *