CHARLOTTE, N.C. — Did you know there are six different types of fog that can form year-round? Here in the Carolinas, fall is the prime season to see those misty mornings roll in. So, let’s raise your Weather IQ and break down what fog really is — and why it’s so common this time of year.

What is fog?

Simply put, fog is a cloud that meets the ground. It forms when tiny water droplets condense close to the surface, making it hard to see more than a few hundred feet ahead.

That condensation happens when the air cools to its dew point — the temperature where the air becomes completely saturated with moisture. Once that happens, water vapor turns into visible droplets, and fog forms.

The recipe for fog

There are three main ingredients needed for fog to form:

The most common type in the Ca

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