1993 Buick Roadmaster Owner's Manual - Page 182

Driving in Fog, Mist and Haze When you drive into fog patch, your$sibility will be a reduced quickly.The biggest dangers are striking the one vehicle ahead or being struck by the behind. Try to If ''read" the fog density down the road.the vehicle or, ahead starts to become less clear at night; if the -the taillights are harder to see, fog is probably thickening. Slow down to give- traffic behind you. a chance to slow down. Everybody then has a better chance.to avoid hittingthe vehicle ahead. A patch of derise fog may extend only for a few feet (meters) or for miles (kilometers); you can't really tell 'the while you'rein it. You can only treat situation with extreme tare. One,common fog condition sometimes calledm i s t or ground fog- can happen in weather that seems perfect, morning in valley and especially at night or in the early in low, marshy areas.You can be suddenly enveloped thick, wet haze that may even coat ,your windshield. You can often spot these fog patches .or mist layers your with headlights. But sometimes they can be waiting you for as you come over a hill or dip a.shallow valley. into Start your windshield wipers and washer, to help clear accumulated road dirt. Slow down carefully.' Fog can occur with high humidity or heavy It can frost. you be so mild that- can see through it for several hundred feet (meters).Or-itmight he so thick .that you It can see only a few feet (meters) ahead. may come it suddenly to an otherwise clear road. And can be a major hazard.