If the fog is so thick you can't see beyong the length of a football field over a widespreak area, you are likely under a fog advisory. The wiregrass and Florida panhandle have been trudging through the fog for most of the week. But what is causing it?

"In the wintertime, especially if you have a lot of rain you have a lot of moisture around and if you've had some cold front move through the ground is fairly chilled, and then you get into a warm weather situation and basically that warm air passes off the cool ground, and the moisture comin off the ground evaporates and boom presto you have fog which is basically clouds on the ground" said WTVY's Chief Meteorologist, Oscar Fann.

High pressure in the southeast, calm wind, unseasonably warm temperatures and more than six inches of recent rainfall have made much of the area look like a steam room. And then there is the drizzle factor

Fann says, "it's not really precipitation but the air becomes so saturated with moisture that its actually dripping off surfaces and all that, and eventually if its enough moisture in the air it will mist into a rain gauge and give you a little bit of measurable rainfall even though its not really rain."

Although you cannot see itm the sun heats the ground, allowing UV rays to burn off the fog from the ground up. Unfortunately, fog wreaks havoc on driving conditions

While there are no formal laws requiring you to turn on your headlights during fog, if your vehicle is not visible up to 500 feet away, you are required to put your headlights on, no matter what the weather conditions, according to Dothan police.

While mother nature will awake from the fog and return to more seasonable-like weather just in time for Christmas, it's important to stay safe until then. Give yourself extra space, and turn on your lights when driving in fog.

There are four main types of fog. The wiregrass has been experiencing Advection fog this week.