Driving in Adverse Weather Conditions

When driving in fog you should stop in the correct position at a junction with limited visibility and listen for traffic. When you are sure it is safe to emerge, do so positively and do not hesitate in a position that puts you directly in the path of approaching vehicles. - [Rule 235](rule_235)

In wet weather, stopping distances will be at least double those required for stopping on dry roads. This is because your tyres have less grip on the road. - [Rule 227](rule_227)

When travelling on ice, tyres make virtually no noise. - [Rule 231](rule_231)

You MUST NOT use front or rear fog lights unless visibility is seriously reduced as they dazzle other road users and can obscure your brake lights. You MUST switch them off when visibility improves. - [Rule 236](rule_236)

In winter check the local weather forecast for warnings of icy or snowy weather. DO NOT drive in these conditions unless your journey is essential. If it is, take great care and allow more time for your journey. - [Rule 228](rule_228)

Keep your vehicle well ventilated to avoid drowsiness. - [Rule 237](rule_237)

High-sided vehicles are most affected by windy weather, but strong gusts can also blow a car, cyclist, motorcyclist or horse rider off course. - [Rule 232](rule_232)

Before you set off: you MUST be able to see, so clear all snow and ice from all your windows. You must also remove all snow that might fall off into the path of other road users. - [Rule 229](rule_229)

When driving in icy or snowy weather: keep well back from the road user in front as stopping distances can be ten times greater than on dry roads. - [Rule 230](rule_230)

You MUST use headlights when visibility is seriously reduced, generally when you cannot see for more than 100 metres (328 feet). - [Rule 226](rule_226)