Explanation

"If you drive too fast in wet conditions, your steering may suddenly feel 'light'. This indicates that the tyres have lifted off the surface of the road and are skating on the surface of the water. This is known as aquaplaning. While this is happening, you'll be unable to steer the vehicle and your brakes will have no effect on your speed. To restore your tyres' grip on the road, ease off the accelerator smoothly. Don't brake or turn the steering until tyre grip has been restored."