November 30th, 2009 
Ethan Melandri Care should be taken when driving in foggy weather. The potential for accidents is greater because no one can see with any clarity and some drivers may not change their driving habits for the inclement conditions.
Fog can be quite thick, thus you might elect to wait until the mist lifts before going on with your drive. However, if you must travel there are some hints and suggestions that can be offered to ensure a safe journey.
Having a vehicle that is in good working order will be invaluable to your journey. The windscreen should be clean and the lights must be functioning properly. This should include the fog lights on your car. If you have less than 100 metres visibility you will want to engage your fog lights. This not only enables you to see better, but other vehicles will be aware of your presence as well. The use of your regular lights will be of no benefit to you at this time. They actually reflect the fog and limit your visibility even more.
As a result of low visibility a common problem in foggy weather is that other drivers are too close to the vehicle in front of them. They tend to feel more comfortable with rear lights in their sights. Some drivers also feel that driving more quickly will help get them on the other side of the fog faster. Both thoughts can lead to accidents on the road. In foggy weather it is best to drive at a safe speed in which you can stop without issue. You also need to use your speedometer to assess your speed since visual information is restricted.
Fog occurs because the air has become cooled down below its dew point, and so the level and thickness of the fog will vary greatly depending on the prevailing environmental and geographic conditions.
Typical times and places to expect fog are normally on cold winter mornings in low lying ground, valleys or significant dips. Because the fog can change thickness and in turn reduce visibility very quickly, you will constantly need to reassess the conditions and tailor your driving accordingly.
If the fog does clear and visibility increases above 100 meters then its important to switch your fog lights off. This is not only because it is a legal requirement it is also courteous to other road users as leaving them on can be distracting and annoying. Remember also to switch off your rear fog light as well, otherwise it can easily mask your brake lights.
Driving in fog can be highly rough, yet you are capable of remaining safe while driving. You will need to drive in a style that meets the conditions you experience and afford space to others on the road.
When driving in heavy mist good visibility is crucial, and you can maximise this by installing Xenon Car Bulbs. By enhancing the beam produced by your headlights, for example by installing high performance H7 Bulbs, you will be able to see further into the fog and other drivers will also see you more clearly.
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Driving in foggy conditions is one of the most dangerous situations any driver will find themselves. I am always grateful that I installed good fog lights on my car so I can see in front of me.