Drivers warned of flash floods

As the UK’s heatwave comes to an end, motorists are being warned that the inevitable flash floods after a prolonged dry spell could make driving conditions particularly hazardous.

The Institute of Advanced Motorists (IAM) has warned that motorists could face torrential rain in the coming days, which means poor driving visibility, difficult car control, slippery road surfaces and increased stopping distances.

Peter Rodger, IAM Chief Examiner said: “A suddenly very wet road surface increases the chances of slipping when braking or steering, which is a problem not just for motorists, but cyclists and motorcyclists too.”

In cases of severe flooding, you should reconsider making the journey at all. If it is unavoidable, and you have to drive through deep water, the IAM recommends drivers take the following precautions:

Drive in the highest section of the road and don't set off if a vehicle is travelling in the opposite direction.

Leave time and space for each other, so you don't swamp someone else.

Drive slowly and keep going once you have started - make sure you have a clear run, keep the revs high by “slipping the clutch” (which means the clutch is not fully engaged) all the time you are in the water.

Under no circumstances in deep water take your foot off the accelerator, as this could allow water to travel up the exhaust pipe.

Once you’re out of the water, dry the brakes before you need them - the best way is to lightly apply the brake as you drive along for a few seconds, checking nothing is following you too closely.

Don’t forget to close your windows!

Mr Rodger added: “Another thing to consider when driving in wet conditions is stopping distances, as roads are slippery and it will take longer to stop. So drop your speed and give yourself more time to slow down. Visibility will be lower during heavy rain, so make a point of turning on your headlights whenever you need to use your windscreen wipers.”