A typical passenger car can start hydroplaning at speeds as low as

Explanation

Hydroplaning occurs when there is standing water on a roadway. Up to 35 mph, modern tires will channel water away, similar to the way that a windshield wiper cleans the windshield. As your speed increases, however, the tires cannot channel the water as well, and your tires may start to lose contact with the road and ride over the water like a set of water skis.