Question

When a cold air mass moves into a warm air mass, it will get colder and we will have severe weather. What type of front is this?

Answer 1

Cold Front

When a cold air mass replaces a warmer air mass, this transition zone is known as a cold front. Typically, cold fronts flow from the northwest to the southeast. A cold front leaves behind it substantially colder and drier air than it did before.

On a weather map, a cold front is represented as a line with triangles. You may imagine the triangles as icicles. Blue is a common color for cold fronts. A cold front indicates that cold air is moving forward and pushing beneath warmer air.

Since cold air is "heavier," or denser, than warm air, this occurs. Thus, warm air is being replaced by cold air near the surface. The tips of the 'icicles' point in the direction that the cold air is moving.

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