How to Drive in Heavy Rain & Floods

Even today's modern road surfaces struggle to cope with a heavy downpour and standing water is a potential hazard. Try to avoid standing water and slow down. If you don't there is a high risk of the car aqua planning.

Aqua planning occurs when the car tyre's tread pattern is unable to disperse enough water to maintain a point of contact between the tyre and the road. This makes the vehicle uncontrollable with the loss of steering, grip and a sensation of driving on ice. It can be a very frightening event as I'm sure anyone who has experienced it will agree. The best advice when it happens is to hold your steering wheel lightly and lift off the accelerator until your car tyres regain their grip.

If you're unlucky enough to break down in heavy rain, stay with your car but check you are not in a location that is at risk of flash flooding. Your engine may have been affected by the water and in many cases the car will restart when it has had a chance to 'dry out'. If you have called for assistance do not prop the bonnet open until help arrives. This will cause the electrics to become rain-soaked and the car will be even harder to restart.

The rain may be so heavy that you experience a flooded road. The AA provides some good advice about how to deal with this:

1. Do not drive through flooded water unless you know how deep it is.

2. Stay in the middle of the road. This is known as the crown of the road and should be where the flood water is shallowest.

3. Drive slowly to avoid creating a bow wave, which can cause neighbouring houses to be flooded.

4. Pass one vehicle at a time through flood water. Allow the oncoming traffic to pass first.

5. Do not risk driving through fast moving water as your car can easily be swept away.

6. Driving at speed through a flood can cause expensive damage. Even a small quantity of water sucked into the engine through the air intake will cause serious damage.

7. As you drive through the flood water, keep the engine revving by slipping the clutch. This prevents water in the exhaust which may stall the engine.

8. Test your brakes as soon as you leave the water.

Car tyres in good condition will be able to cope with most wet driving surfaces. But with heavy rain or a sudden downpour extra care must be taken to avoid a possible accident or injury.

Call in to your nearest Merityre garage for a FREE car tyre check.