Side winds

Some vehicles can become unstable in strong side winds (or crosswinds), because of their large surface area and comparatively low weight.

This can happen particularly on exposed stretches of road such as motorways, viaducts and bridges.

The effect can vary from a slight pull on the steering wheel to a distinct wander, possibly into the path of another vehicle.

In very bad cases, the vehicle can be blown off the road or onto its side, with very serious results.

Cyclists and motorcyclists

In gusty conditions, watch for cyclists or motorcyclists being blown sideways and veering into your path. Allow extra room when overtaking.

High-sided vehicles and trailers

Drivers of high-sided vehicles, or those towing caravans, trailers or horseboxes (particularly empty ones), should

• pay special attention to forecasts of strong winds
• avoid well-known trouble spots and high bridges.

Drivers of these vehicles should be constantly alert for the effects of wind near bridges and embankments, even on normal journeys in reasonable conditions. If there’s a severe weather warning, consider whether your journey is really necessary.

Other drivers should bear this in mind when about to overtake, or when being overtaken by, these particular types of vehicle.