Fog driving in winter

Trucks in fog driving in winter

Driving in fog, especially at this time of year can be very treacherous when the temperatures are close to the freezing point. First off, what actually is fog? Fog is actually low clouds. We usually see them high in the sky, but they do decent to ground level, and they severely limit visibility.  Clouds consist of water vapour suspended in the air, and once the humidity level reaches 100%, then the air is saturated, and simply can not absorb anymore moisture, and the result is fog. When the temperature is below freezing, the moisture will freeze on surfaces on contact. This is called “Hoar Frost”, and it can accumulate on your truck, adding to the overall weight, and can block air from cooling the engine. It will also cause ice to accumulate on bridges and on your headlights, reducing their effectiveness as well as ice buildup on the truck’s running boards, making it very slippery getting in and out of the truck. Again, be sure to keep your windshield, side windows and mirrors clear, as visibility will be limited enough without excess ice forming around the edge of the windows, and fogging up the inside of the windows.

truck mirror hoarfrost